Question 1

An object transfers heat when its temperature is lowered by contact with

Accepted Answer

The answer of An object transfers heat when its temperature...

Question 2

At 96°F the saturation density of air is 0.04 kg/m³.If the weather report says the relative humidity is 90% when the temperature is 96°F,the humidity is __________.

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The answer of At 96°F the saturation density of air...

Question 3

The air inside a bicycle tire pump has 60 joules of work done on it as 20 joules of heat is conducted away from it.What is the change in internal energy of the air?

Accepted Answer

The answer of The air inside a bicycle tire pump...

Question 4

In a steam engine,steam at 140°C in a turbine does work on an external system,and the steam leaves the turbine at 100°C.The efficiency of the steam engine is 5%.The relevant physical principle is the __________ law of thermodynamics.

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The answer of In a steam engine,steam at 140°C in...

Question 5

A baseball with mass 0.14 kilograms and speed 40 m/s is caught.If all of its kinetic energy is converted to internal energy as it is caught,what is its temperature change? (Assume the baseball's specific heat capacity is 1,000 joules per kilogram degree Celsius. )

Accepted Answer

The answer of A baseball with mass 0.14 kilograms and...

Question 6

A material through which heat conducts slowly is called a __________.

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The answer of A material through which heat conducts slowly...

Question 7

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-After the 1 kg block of ice melts,the amount of heat required to raise its temperature to 10°C is __________.

Accepted Answer

The answer of specific heat capacity of ice = 2,000...

Question 8

A 4 kilogram block of ice is removed from a freezer where its temperature was maintained at -20 degrees Celsius.How much heat does the ice absorb as it is warmed to -10 degrees? (The specific heat capacity of ice is 2,000 joules per kilogram degree Celsius. )

Accepted Answer

The answer of A 4 kilogram block of ice is...

Question 9

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-As the ice is melting,the temperature of the ice-water mixture rises by __________.

Accepted Answer

The answer of specific heat capacity of ice = 2,000...

Question 10

The Eiffel tower in Paris is made primarily of iron,whose coefficient of linear expansion is about 10 × 10−⁶/°C.On a cold day when the temperature is -10°C the Eiffel tower is 300 meters tall.Its height on a hot day when the temperature is 40°C is __________.

Accepted Answer

The answer of The Eiffel tower in Paris is made...

Question 11

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-The 1 kg block of ice melts into water.The amount of heat absorbed by the ice as it melts is __________.

Accepted Answer

The answer of specific heat capacity of ice = 2,000...

Question 12

What is the maximum efficiency of a heat engine operating between 293 Kelvins and 273 Kelvins,the temperatures at the surface and several hundred meters below the surface,respectively,of the ocean?

Accepted Answer

The answer of What is the maximum efficiency of a...

Question 13

An object transfers heat when its temperature is raised by contact with a

Accepted Answer

The answer of An object transfers heat when its temperature...

Question 14

On a winter day the temperature is 5 degrees Celsius and the humidity is 0.003 kilograms per cubic meter.
(a)What is the relative humidity?
(b)The air is brought into a building and heated to 20 degrees Celsius without
changing the humidity.What is the relative humidity inside the building?

Accepted Answer

The answer of On a winter day the temperature is...

Question 15

specific heat capacity of ice = 2,000 J/kg-°C
latent heat of fusion of water = 334,000 J/kg
specific heat capacity of water = 4,000 J/kg-°C
-A 1 kg block of ice is removed from a freezer where its temperature was -10°C.The amount of heat absorbed by the ice as it warms to 0°C is __________.

Accepted Answer

The answer of specific heat capacity of ice = 2,000...

Question 16

A piston compresses a gas,while at the same time heat is lost to the surroundings.The temperature of the gas rises.This is governed by the __________ law of thermodynamics.

Accepted Answer

The answer of A piston compresses a gas,while at the...

Question 17

At temperatures below their boiling point,liquids gradually go into the gas phase through a process called

Accepted Answer

The answer of At temperatures below their boiling point,liquids gradually...

Question 18

The air temperature where the humidity reaches the saturation density is called the ___________.

Accepted Answer

The answer of The air temperature where the humidity reaches...

Question 19

The Eiffel tower in Paris is 300 meters tall on a cold day (T = - 5 degrees Celsius).What is its height on a hot day when the temperature is 35 degrees? (It is made of iron which has a coefficient of linear expansion of 0.000012 per degree Celsius. )

Accepted Answer

The answer of The Eiffel tower in Paris is 300...

Question 20

Natural processes tend to increase the __________ of thermodynamic systems.

Accepted Answer

The answer of Natural processes tend to increase the __________...

Quiz 5: Temperature and Heat

An object transfers heat when its temperature is lowered by contact with

At 96°F the saturation density of air is 0.04 kg/m3.If the weather report says the relative humidity is 90% when the temperature is 96°F,the humidity is __________.

The air inside a bicycle tire pump has 60 joules of work done on it as 20 joules of heat is conducted away from it.What is the change in internal energy of the air?

In a steam engine,steam at 140°C in a turbine does work on an external system,and the steam leaves the turbine at 100°C.The efficiency of the steam engine is 5%.The relevant physical principle is the __________ law of thermodynamics.

A baseball with mass 0.14 kilograms and speed 40 m/s is caught.If all of its kinetic energy is converted to internal energy as it is caught,what is its temperature change? (Assume the baseball's specific heat capacity is 1,000 joules per kilogram degree Celsius. )

A material through which heat conducts slowly is called a __________.

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -After the 1 kg block of ice melts,the amount of heat required to raise its temperature to 10°C is __________.

A 4 kilogram block of ice is removed from a freezer where its temperature was maintained at -20 degrees Celsius.How much heat does the ice absorb as it is warmed to -10 degrees? (The specific heat capacity of ice is 2,000 joules per kilogram degree Celsius. )

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -As the ice is melting,the temperature of the ice-water mixture rises by __________.

The Eiffel tower in Paris is made primarily of iron,whose coefficient of linear expansion is about 10 × 10−6/°C.On a cold day when the temperature is -10°C the Eiffel tower is 300 meters tall.Its height on a hot day when the temperature is 40°C is __________.

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -The 1 kg block of ice melts into water.The amount of heat absorbed by the ice as it melts is __________.

What is the maximum efficiency of a heat engine operating between 293 Kelvins and 273 Kelvins,the temperatures at the surface and several hundred meters below the surface,respectively,of the ocean?

An object transfers heat when its temperature is raised by contact with a

On a winter day the temperature is 5 degrees Celsius and the humidity is 0.003 kilograms per cubic meter. (a)What is the relative humidity? (b)The air is brought into a building and heated to 20 degrees Celsius without changing the humidity.What is the relative humidity inside the building?

specific heat capacity of ice = 2,000 J/kg-°C latent heat of fusion of water = 334,000 J/kg specific heat capacity of water = 4,000 J/kg-°C -A 1 kg block of ice is removed from a freezer where its temperature was -10°C.The amount of heat absorbed by the ice as it warms to 0°C is __________.

A piston compresses a gas,while at the same time heat is lost to the surroundings.The temperature of the gas rises.This is governed by the __________ law of thermodynamics.

At temperatures below their boiling point,liquids gradually go into the gas phase through a process called

The air temperature where the humidity reaches the saturation density is called the ___________.

The Eiffel tower in Paris is 300 meters tall on a cold day (T = - 5 degrees Celsius).What is its height on a hot day when the temperature is 35 degrees? (It is made of iron which has a coefficient of linear expansion of 0.000012 per degree Celsius. )

Natural processes tend to increase the __________ of thermodynamic systems.

At 96°F the saturation density of air is 0.04 kg/m³.If the weather report says the relative humidity is 90% when the temperature is 96°F,the humidity is __________.

The Eiffel tower in Paris is made primarily of iron,whose coefficient of linear expansion is about 10 × 10−⁶/°C.On a cold day when the temperature is -10°C the Eiffel tower is 300 meters tall.Its height on a hot day when the temperature is 40°C is __________.