Question 1

For the following reaction,which of the given changes will increase the value of the equilibrium constant? AB + CD  AD + BC + heat

Accepted Answer

The answer of For the following reaction,which of the given...

Question 2

If we add a catalyst to the following equation,which way will the equilibrium shift? CO + H₂O + heat CO₂ + H₂

Accepted Answer

The answer of If we add a catalyst to the...

Question 3

Ice has a(n)____ entropy than that of liquid water.

Accepted Answer

Ice has a lower entropy than liquid water because its molecules are more ordered and structured, leading to less disorder and randomness in the system.

Question 4

For the following energy diagram,which letter represents the catalyzed activation energy?

Accepted Answer

The answer of For the following energy diagram,which letter represents...

Question 5

You've been told that 'when a change is made in any factor of an established equilibrium,the position of equilibrium will shift in a direction that will minimize or oppose the change.' This is a statement of which of the following?

Accepted Answer

This statement is referring to the concept of Le Châtelier's principle, which states that a system at equilibrium will respond to a stress in a way that minimizes or opposes the stress. Factors such as temperature, pressure, and concentration can all affect the position of equilibrium, and the system will adjust accordingly to maintain equilibrium.

Question 6

A patient complains about having painful muscle spasms after working on a very hot day.The patient's skin is moist and cool,heart rate is near normal as well as his/her body temperature.What should you not do for them?

Accepted Answer

Giving the patient a caffeinated drink will only make things worse as caffeine is a diuretic and can increase dehydration. This can exacerbate muscle spasms and the symptoms associated with heat exhaustion. The other options, such as bringing them to a cool place, sponging them with cool water, and encouraging rest, are all appropriate measures to take in order to manage their symptoms.

Question 7

A process that gains or accepts energy as it takes place is a(n)_____ .

Accepted Answer

An endergonic process is one that requires energy input or gains energy during the process. Choice A, exergonic processes, release energy as they occur. Choice B, spontaneous processes, occur without the need for an input of free energy. Therefore, only option C fits the description of gaining or accepting energy during a process.

Question 8

What would be the effect of doubling the pressure on the following equilibrium system? N₂(g)+ 3F₂(g) 2NF₃(g)

Accepted Answer

According to Le Chatelier's principle, when increasing the pressure of a reaction system, the equilibrium will shift to the side with fewer moles of gas. In this case, the reactant side has two moles of gas while the product side has one mole of gas. Therefore, increasing the pressure will shift the equilibrium to the right, towards the side with fewer moles of gas.

Question 9

Which of the following is the proper equilibrium expression for the reaction shown below? 2A + B  C + heat

Accepted Answer

The answer of Which of the following is the proper...

Question 10

A doctor has given your patient a prescription of a common amphetamine.What should the patient avoid when taking this medication?

Accepted Answer

Patients taking common amphetamines should avoid consuming alcohol as it may increase the risk of side effects such as dizziness, drowsiness, and impaired judgment. It may also affect the medication's effectiveness.

Question 11

The equilibrium constants for a series of reaction of the general type: AB + CD  AD + BC
Were measured and are shown below.In which reaction is the concentration of the products the largest at equilibrium?

Accepted Answer

The answer of The equilibrium constants for a series of...

Question 12

Based upon the energy diagram given below,which letter represents the enthalpy for the reaction?

Accepted Answer

The answer of Based upon the energy diagram given below,which...

Question 13

A room filled with a 2:1 mixture of hydrogen and oxygen gases can be safely inhaled.However,with a single spark,it can react explosively.Since the explosion would be considered a spontaneous process,what did the spark provide?

Accepted Answer

The spark provides activation energy, which is the energy needed to initiate a chemical reaction. In this case, the activation energy is provided to initiate the reaction between the hydrogen and oxygen gases, leading to an explosive reaction.

Question 14

Which of the following is NOT true regarding a chemical reaction?

Accepted Answer

The answer of Which of the following is NOT true...

Question 15

The device used to measure heat produced or used by a chemical reaction is called a(n)_____ .

Accepted Answer

A calorimeter is specifically designed to measure the heat produced or used in a chemical reaction. A thermometer measures temperature, not heat, and an activator and joulery are not related to the measurement of heat in a chemical reaction.

Question 16

Consider the following energy diagram.Which letter represents the activation energy for the forward reaction?

Accepted Answer

The answer of Consider the following energy diagram.Which letter represents...

Question 17

An elderly person comes to you on a winter day with blue fingers and toes,sluggish movement,and slurred speech.What condition do they most likely have?

Accepted Answer

The symptoms described are consistent with hypothermia, a condition in which the body temperature drops below normal due to prolonged exposure to cold temperatures. The blue fingers and toes indicate poor circulation, while sluggish movement and slurred speech are signs of reduced brain function due to low body temperature.

Question 18

If we remove CO₂ from the following equation,which way will the equilibrium shift? CO + H₂O + heat CO₂ + H₂

Accepted Answer

The answer of If we remove CO₂ from the following...

Question 19

The following reaction is observed in a lab experiment: A + 2B $\rightarrow$ C + D In this experiment,it required 750 s for the concentration of C to change from 0.333 M to 0.750 M.What is the rate of the reaction?

Accepted Answer

The answer of The following reaction is observed in a...

Question 20

Which of the following would be the equilibrium expression for the system given below? N₂(g)+ 3F₂(g) 2NF₃(g)

Accepted Answer

The answer of Which of the following would be the...

Quiz 8: Reaction Rates and Equilibrium

For the following reaction,which of the given changes will increase the value of the equilibrium constant? AB + CD AD + BC + heat

If we add a catalyst to the following equation,which way will the equilibrium shift? CO + H₂O + heat CO₂ + H₂

Ice has a(n) ____ entropy than that of liquid water.

For the following energy diagram,which letter represents the catalyzed activation energy?

You've been told that 'when a change is made in any factor of an established equilibrium,the position of equilibrium will shift in a direction that will minimize or oppose the change.' This is a statement of which of the following?

A patient complains about having painful muscle spasms after working on a very hot day.The patient's skin is moist and cool,heart rate is near normal as well as his/her body temperature.What should you not do for them?

A process that gains or accepts energy as it takes place is a(n) _____ .

What would be the effect of doubling the pressure on the following equilibrium system? N₂(g) + 3F₂(g) 2NF₃(g)

Which of the following is the proper equilibrium expression for the reaction shown below? 2A + B C + heat

A doctor has given your patient a prescription of a common amphetamine.What should the patient avoid when taking this medication?

The equilibrium constants for a series of reaction of the general type: AB + CD AD + BC Were measured and are shown below.In which reaction is the concentration of the products the largest at equilibrium?

Based upon the energy diagram given below,which letter represents the enthalpy for the reaction?

A room filled with a 2:1 mixture of hydrogen and oxygen gases can be safely inhaled.However,with a single spark,it can react explosively.Since the explosion would be considered a spontaneous process,what did the spark provide?

Which of the following is NOT true regarding a chemical reaction?

The device used to measure heat produced or used by a chemical reaction is called a(n) _____ .

Consider the following energy diagram.Which letter represents the activation energy for the forward reaction?

An elderly person comes to you on a winter day with blue fingers and toes,sluggish movement,and slurred speech.What condition do they most likely have?

If we remove CO₂ from the following equation,which way will the equilibrium shift? CO + H₂O + heat CO₂ + H₂

The following reaction is observed in a lab experiment: A + 2B $\rightarrow$ C + D In this experiment,it required 750 s for the concentration of C to change from 0.333 M to 0.750 M.What is the rate of the reaction?

Which of the following would be the equilibrium expression for the system given below? N₂(g) + 3F₂(g) 2NF₃(g)

Quiz 8: Reaction Rates and Equilibrium

For the following reaction,which of the given changes will increase the value of the equilibrium constant? AB + CD AD + BC + heat

If we add a catalyst to the following equation,which way will the equilibrium shift? CO + H2O + heat CO2 + H2

Ice has a(n) ____ entropy than that of liquid water.

For the following energy diagram,which letter represents the catalyzed activation energy?

You've been told that 'when a change is made in any factor of an established equilibrium,the position of equilibrium will shift in a direction that will minimize or oppose the change.' This is a statement of which of the following?

A patient complains about having painful muscle spasms after working on a very hot day.The patient's skin is moist and cool,heart rate is near normal as well as his/her body temperature.What should you not do for them?

A process that gains or accepts energy as it takes place is a(n) _____ .

What would be the effect of doubling the pressure on the following equilibrium system? N2(g) + 3F2(g) 2NF3(g)

Which of the following is the proper equilibrium expression for the reaction shown below? 2A + B C + heat

A doctor has given your patient a prescription of a common amphetamine.What should the patient avoid when taking this medication?

The equilibrium constants for a series of reaction of the general type: AB + CD AD + BC Were measured and are shown below.In which reaction is the concentration of the products the largest at equilibrium?

Based upon the energy diagram given below,which letter represents the enthalpy for the reaction?

A room filled with a 2:1 mixture of hydrogen and oxygen gases can be safely inhaled.However,with a single spark,it can react explosively.Since the explosion would be considered a spontaneous process,what did the spark provide?

Which of the following is NOT true regarding a chemical reaction?

The device used to measure heat produced or used by a chemical reaction is called a(n) _____ .

Consider the following energy diagram.Which letter represents the activation energy for the forward reaction?

An elderly person comes to you on a winter day with blue fingers and toes,sluggish movement,and slurred speech.What condition do they most likely have?

If we remove CO2 from the following equation,which way will the equilibrium shift? CO + H2O + heat CO2 + H2

The following reaction is observed in a lab experiment: A + 2B →\rightarrow→ C + D In this experiment,it required 750 s for the concentration of C to change from 0.333 M to 0.750 M.What is the rate of the reaction?

Which of the following would be the equilibrium expression for the system given below? N2(g) + 3F2(g) 2NF3(g)

If we add a catalyst to the following equation,which way will the equilibrium shift? CO + H₂O + heat CO₂ + H₂

What would be the effect of doubling the pressure on the following equilibrium system? N₂(g) + 3F₂(g) 2NF₃(g)

If we remove CO₂ from the following equation,which way will the equilibrium shift? CO + H₂O + heat CO₂ + H₂

The following reaction is observed in a lab experiment: A + 2B $\rightarrow$ C + D In this experiment,it required 750 s for the concentration of C to change from 0.333 M to 0.750 M.What is the rate of the reaction?

Which of the following would be the equilibrium expression for the system given below? N₂(g) + 3F₂(g) 2NF₃(g)