Question 1

Which laboratory observation would most support the kinetic theory's assumption that gas molecules have little attraction for one another?

Accepted Answer

A)  A gas expands when the pressure on it is released. 
B)  A gas with a lower formula mass diffuses more rapidly than one with a higher formula mass. 
C)  A gas exerts the same pressure on each part of a container's wall. 
D)  A gas has mass. 
A)  A gas expands when the pressure on it is released. 
B)  A gas with a lower formula mass diffuses more rapidly than one with a higher formula mass. 
C)  A gas exerts the same pressure on each part of a container's wall. 
D)  A gas has mass. A

Question 2

A ______________ is an ultra-hot collection of electrically charged particles.

Accepted Answer

A)  gas 
B)  liquid 
C)  plasma 
D)  solid 
A)  gas 
B)  liquid 
C)  plasma 
D)  solid C

Question 3

If the temperature and number of molecules remain constant for a gas,a pressure increase results in a volume ______________.

Accepted Answer

decrease

Question 4

Gas pressure is caused by molecular ______________ with the walls of the container.

Accepted Answer

The answer of Gas pressure is caused by molecular ______________...

Question 5

What happens to a sample of water when it is heated between 4°C and 100°C?

Accepted Answer

A)  Its volume increases. 
B)  Its volume is reduced. 
C)  It vaporizes. 
D)  Nothing changes except its temperature. 
A)  Its volume increases. 
B)  Its volume is reduced. 
C)  It vaporizes. 
D)  Nothing changes except its temperature.

Question 6

A temperature of degrees 290 Fahrenheit is equivalent to _____ degrees Celsius.

Accepted Answer

A)  62.6 
B)  554.0 
C)  143.3 
D)  17.0 
A)  62.6 
B)  554.0 
C)  143.3 
D)  17.0

Question 7

A sample of gas has its number of molecules quadrupled,its Kelvin temperature doubled,and its volume tripled.By what factor has the new pressure changed relative to the original pressure?

Accepted Answer

A)  2.7 
B)  1.7 
C)  24.3 
D)  24 
A)  2.7 
B)  1.7 
C)  24.3 
D)  24

Question 8

On a winter day the temperature drops from -5°C to -15°C overnight.If a pan sitting outside contains 0.40 kg of ice,how much heat is removed from the ice for this temperature change?

Accepted Answer

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

Question 9

The heating of a room by a fire in a fireplace is chiefly due to

Accepted Answer

A)  vaporization. 
B)  radiation. 
C)  convection. 
D)  conduction. 
A)  vaporization. 
B)  radiation. 
C)  convection. 
D)  conduction.

Question 10

A constant volume and mass of helium gas at 77°C is heated so that the pressure of the gas doubles.What is the new temperature of the gas in Celsius degrees?

Accepted Answer

A)  154°C 
B)  273°C 
C)  427°C 
D)  700°C 
A)  154°C 
B)  273°C 
C)  427°C 
D)  700°C

Question 11

When heat is added to a closed system,it goes into

Accepted Answer

A)  work only. 
B)  entropy only. 
C)  internal energy only. 
D)  either (
A)  or (
C)  or both. 
A)  work only. 
B)  entropy only. 
C)  internal energy only. 
D)  either (
A)  or (
C)  or both.

Question 12

The number of molecules in a container is quadrupled and the Kelvin temperature quadrupled.The volume remains unchanged.The new pressure will be how many times greater than the original pressure?

Accepted Answer

A)  16 
B)  1 
C)  20 
D)  32 
A)  16 
B)  1 
C)  20 
D)  32

Question 13

Water has a specific heat value of ______________.

Accepted Answer

The answer of Water has a specific heat value of...

Question 14

If the temperature of a quantity of ideal gas increases,then

Accepted Answer

A)  the number of molecules must increase. 
B)  the pressure must increase. 
C)  the volume must increase. 
D)  the product of the pressure and volume must increase. 
A)  the number of molecules must increase. 
B)  the pressure must increase. 
C)  the volume must increase. 
D)  the product of the pressure and volume must increase.

Question 15

Heat transfer from hot or cold liquids in a thermos bottle is prevented by ______________.

Accepted Answer

A)  convection 
B)  conduction 
C)  radiation 
D)  all of these 
A)  convection 
B)  conduction 
C)  radiation 
D)  all of these

Question 16

The insulation in walls uses which of the following methods to prevent heat transfer?

Accepted Answer

A)  Conduction 
B)  Convection 
C)  Radiation 
D)  Conduction and convection 
E)  All of these 
A)  Conduction 
B)  Convection 
C)  Radiation 
D)  Conduction and convection 
E)  All of these

Question 17

A temperature of degrees 260 Celsius is equivalent to _____ Kelvin.

Accepted Answer

A)  8.6 
B)  533.2 
C)  126.7 
D)  -13.0 
A)  8.6 
B)  533.2 
C)  126.7 
D)  -13.0

Question 18

The SI unit of heat is the ______________.

Accepted Answer

The answer of The SI unit of heat is the...

Question 19

The first law of thermodynamics states that heat added to a closed system can change the internal energy of the system and/or do ______________.

Accepted Answer

The answer of The first law of thermodynamics states that...

Question 20

Below 4°C,water ______________ with decreasing temperature.

Accepted Answer

The answer of Below 4°C,water ______________ with decreasing temperature....

Exam 5: Temperature and Heat

Which laboratory observation would most support the kinetic theory's assumption that gas molecules have little attraction for one another?

A ______________ is an ultra-hot collection of electrically charged particles.

If the temperature and number of molecules remain constant for a gas,a pressure increase results in a volume ______________.

Gas pressure is caused by molecular ______________ with the walls of the container.

What happens to a sample of water when it is heated between 4°C and 100°C?

A temperature of degrees 290 Fahrenheit is equivalent to _____ degrees Celsius.

A sample of gas has its number of molecules quadrupled,its Kelvin temperature doubled,and its volume tripled.By what factor has the new pressure changed relative to the original pressure?

On a winter day the temperature drops from -5°C to -15°C overnight.If a pan sitting outside contains 0.40 kg of ice,how much heat is removed from the ice for this temperature change?

The heating of a room by a fire in a fireplace is chiefly due to

A constant volume and mass of helium gas at 77°C is heated so that the pressure of the gas doubles.What is the new temperature of the gas in Celsius degrees?

When heat is added to a closed system,it goes into

The number of molecules in a container is quadrupled and the Kelvin temperature quadrupled.The volume remains unchanged.The new pressure will be how many times greater than the original pressure?

Water has a specific heat value of ______________.

If the temperature of a quantity of ideal gas increases,then

Heat transfer from hot or cold liquids in a thermos bottle is prevented by ______________.

The insulation in walls uses which of the following methods to prevent heat transfer?

A temperature of degrees 260 Celsius is equivalent to _____ Kelvin.

The SI unit of heat is the ______________.

The first law of thermodynamics states that heat added to a closed system can change the internal energy of the system and/or do ______________.

Below 4°C,water ______________ with decreasing temperature.

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