Question 1

What are the signs of ΔH, ΔS, and ΔG for the process of ice melting at 10˚C and 1 atm?

Accepted Answer

The answer of What are the signs of ΔH, ΔS,...

Question 2

Given the following chemical reaction at 298^oK:3 O₂₍_g) $\rightarrow$ 2 O_3(g) ?G? = 344 kJ/mole, what would be ?G if the partial pressure of O₂ = 0.20 bar and O₃ = 0.0001 bar?

Accepted Answer

The answer of Given the following chemical reaction at 298^oK:3...

Question 3

An explosive that is also used as fertilizer is ammonium nitrate. Calculate $\Delta$G$\degree$ for one of the decomposition reactions this fertilizer can undergo. ($\Delta$G$\degree$ = -183.9 (NH₄NO₃), 103.7 (N₂O), -228.7 (H₂O) in kJ/mol) NH₄NO_3(s) $\rightarrow$ N₂O₍_g) + 2 H₂O_(g)

Accepted Answer

The answer of An explosive that is also used as...

Question 4

At 45$\degree$C, what is the vapour pressure of Iodine? (I_2(s): $\Delta$H$\degree$ = 0, S$\degree$ = 116.1 J/mol.K) (I₂₍_g): $\Delta$H$\degree$ = 62.4 kJ/mol, S$\degree$ = 260.7 J/mol.K)

Accepted Answer

The answer of At 45$\degree$C, what is the vapour pressure...

Question 5

Estimate how many moles of ATP would be required to ride a bicycle at 35 km/hour for 1 hour, an activity that would require about 1500 kJ of energy, givenATP $\rightarrow$ ADP + H₂O, ?G° = -30.6 kJ

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Question 6

Glucose (MM = 180g/mole) is metabolized at a rate of about 38% efficiency. How many grams of glucose would supply the energy to ride a bicycle at 35 km/hour for 1 hour, an activity that would require about 1500 kJ of energy?

Accepted Answer

The answer of Glucose (MM = 180g/mole) is metabolized at...

Question 7

Palmitic acid, C₁₅H₃₁CO₂H undergoes complete combustion with $\Delta$G_rxn^o of -9790 kJ mol^-1^.Using bond energies, estimate the entropy change associated with this reaction.

Accepted Answer

Uses concepts covered in Chapter 3; requires student to correctly balance combustion rxn.

Question 8

Chemical energy stored in glucose can be used to convert ADP to ATP; under normal physiological conditions the process, shown below, is 38.3 % efficient: C₆H₁₂O₆+ 6O₂ + 36 ADP + 36 H₃PO₄ $\rightarrow$ 6CO₂ + 36 ATP + 42 H₂O $\Delta$G° = Given that the reaction: ADP + H₃PO₄ $\rightarrow$ ATP + H₂O requires 30.6 kJ mol^-1 determine $\Delta$G° for the reaction of glucose and ADP above.

Accepted Answer

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Question 9

The formation of ATP from ADP requires 30.6 kJ/mol. The oxidation of the fat, palmitic acid, to carbon dioxide yields -9790 kJ/mol of energy. Yet your body is only able to produce 130 ATP units per 1 palmitic acid unit. What is the percent yield for this biological process?

Accepted Answer

The answer of The formation of ATP from ADP requires...

Question 10

A person exercises for 30 minutes and burns 800 kJ of free energy. How many moles of ATP (-30.6 kJ/mol) does this represent and based on 38% efficiency, how many grams of glucose were burned if 1 mole of glucose can make 36 ATPs?

Accepted Answer

The answer of A person exercises for 30 minutes and...

Quiz 12: Spontaneity of Chemical Processes

What are the signs of ΔH, ΔS, and ΔG for the process of ice melting at 10˚C and 1 atm?

Given the following chemical reaction at 298^oK:3 O₂₍_g) $\rightarrow$ 2 O_3(g) ?G? = 344 kJ/mole, what would be ?G if the partial pressure of O₂ = 0.20 bar and O₃ = 0.0001 bar?

At 45 $\degree$ C, what is the vapour pressure of Iodine? (I_2(s): $\Delta$ H $\degree$ = 0, S $\degree$ = 116.1 J/mol.K) (I₂₍_g): $\Delta$ H $\degree$ = 62.4 kJ/mol, S $\degree$ = 260.7 J/mol.K)

Estimate how many moles of ATP would be required to ride a bicycle at 35 km/hour for 1 hour, an activity that would require about 1500 kJ of energy, givenATP $\rightarrow$ ADP + H₂O, ?G° = -30.6 kJ

Glucose (MM = 180g/mole) is metabolized at a rate of about 38% efficiency. How many grams of glucose would supply the energy to ride a bicycle at 35 km/hour for 1 hour, an activity that would require about 1500 kJ of energy?

Palmitic acid, C₁₅H₃₁CO₂H undergoes complete combustion with $\Delta$ G_rxn^o of -9790 kJ mol^-1^.Using bond energies, estimate the entropy change associated with this reaction.

The formation of ATP from ADP requires 30.6 kJ/mol. The oxidation of the fat, palmitic acid, to carbon dioxide yields -9790 kJ/mol of energy. Yet your body is only able to produce 130 ATP units per 1 palmitic acid unit. What is the percent yield for this biological process?

A person exercises for 30 minutes and burns 800 kJ of free energy. How many moles of ATP (-30.6 kJ/mol) does this represent and based on 38% efficiency, how many grams of glucose were burned if 1 mole of glucose can make 36 ATPs?

Quiz 12: Spontaneity of Chemical Processes

What are the signs of ΔH, ΔS, and ΔG for the process of ice melting at 10˚C and 1 atm?

Given the following chemical reaction at 298oK:3 O2(g) →\rightarrow→ 2 O3(g) ?G? = 344 kJ/mole, what would be ?G if the partial pressure of O2 = 0.20 bar and O3 = 0.0001 bar?

An explosive that is also used as fertilizer is ammonium nitrate. Calculate Δ\DeltaΔ G °\degree° for one of the decomposition reactions this fertilizer can undergo. ( Δ\DeltaΔ G °\degree° = -183.9 (NH4NO3), 103.7 (N2O), -228.7 (H2O) in kJ/mol) NH4NO3(s) →\rightarrow→ N2O(g) + 2 H2O(g)

At 45 °\degree° C, what is the vapour pressure of Iodine? (I2(s): Δ\DeltaΔ H °\degree° = 0, S °\degree° = 116.1 J/mol.K) (I2(g): Δ\DeltaΔ H °\degree° = 62.4 kJ/mol, S °\degree° = 260.7 J/mol.K)

Estimate how many moles of ATP would be required to ride a bicycle at 35 km/hour for 1 hour, an activity that would require about 1500 kJ of energy, givenATP →\rightarrow→ ADP + H2O, ?G° = -30.6 kJ

Glucose (MM = 180g/mole) is metabolized at a rate of about 38% efficiency. How many grams of glucose would supply the energy to ride a bicycle at 35 km/hour for 1 hour, an activity that would require about 1500 kJ of energy?

Palmitic acid, C15H31CO2H undergoes complete combustion with Δ\DeltaΔ Grxn o of -9790 kJ mol-1. Using bond energies, estimate the entropy change associated with this reaction.

The formation of ATP from ADP requires 30.6 kJ/mol. The oxidation of the fat, palmitic acid, to carbon dioxide yields -9790 kJ/mol of energy. Yet your body is only able to produce 130 ATP units per 1 palmitic acid unit. What is the percent yield for this biological process?

A person exercises for 30 minutes and burns 800 kJ of free energy. How many moles of ATP (-30.6 kJ/mol) does this represent and based on 38% efficiency, how many grams of glucose were burned if 1 mole of glucose can make 36 ATPs?

Given the following chemical reaction at 298^oK:3 O₂₍_g) $\rightarrow$ 2 O_3(g) ?G? = 344 kJ/mole, what would be ?G if the partial pressure of O₂ = 0.20 bar and O₃ = 0.0001 bar?

At 45 $\degree$ C, what is the vapour pressure of Iodine? (I_2(s): $\Delta$ H $\degree$ = 0, S $\degree$ = 116.1 J/mol.K) (I₂₍_g): $\Delta$ H $\degree$ = 62.4 kJ/mol, S $\degree$ = 260.7 J/mol.K)

Estimate how many moles of ATP would be required to ride a bicycle at 35 km/hour for 1 hour, an activity that would require about 1500 kJ of energy, givenATP $\rightarrow$ ADP + H₂O, ?G° = -30.6 kJ

Palmitic acid, C₁₅H₃₁CO₂H undergoes complete combustion with $\Delta$ G_rxn^o of -9790 kJ mol^-1^.Using bond energies, estimate the entropy change associated with this reaction.