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- 1. Multiple Choice
Transfer of heat in a gas or liquid by the motion of particles in the heated fluid
conduction
convection
radiation
- 2. Multiple Choice
1200 J of heat are added to a sample of gas while the gas does 400 J of work on the environment. What is the change in internal energy of the gas?
800 J
1600 J
-800 J
-1600 J
- 3. Multiple Choice
Transfer of heat by means of electromagnetic waves
conduction
convection
radiation
- 4. Multiple Choice
During process A, from state 1 to state 2, the temperature of the ideal gas
stays the same
increases
decreases
is half as much
- 5. Multiple Choice
Transfer of heat by contact and collisions between the molecules in a substance.
conduction
radiation
convection
- 6. Multiple Choice
During an adiabatic process, a sample of gas does 400 J of work on the environment. What change occurs with the internal energy of the gas?
The internal energy increases by 400 J.
The internal energy doesn't change.
The internal energy decreases by 400 J.
There is not enough information if we don't know how much heat was added or removed.
- 7. Multiple Choice
Process B on the PV diagram is an ______________ process.
adiabatic
isobaric
isochoric
isothermal
- 8. Multiple Choice
If the temperature of a gas increases and there is negative work done on the gas, then...
there must be heat added to the gas
the gas must be giving off heat to the environment.
this is an adiabatic process.
there must be less heat added than the work done on the gas.
- 9. Multiple ChoiceWarm air rises and cold air sinks demonstrates what?conductionconvectionradiationrefrigeration
- 10. Multiple Choice
The average kinetic energy of the atoms or molecules in a substance is directly related to
heat
specific heat capacity
temperature
Brownian Motion
- 11. Multiple Choice
What is heat?
the amount of thermal energy in an object
an object's internal kinetic energy
the transfer of thermal energy from one object to another
the amount of energy needed to raise the temp of an object
- 12. Multiple Choice
During process D, from state 4 to state 1, the ideal gas...
is increasing temperature.
is doing work on the environment.
is decreasing pressure.
is decreasing temperature.
- 13. Multiple ChoiceIn this method of heat transfer heat is carried by a moving medium, like water or air.ConductionConvectionRadiationthis is impossible
- 14. Multiple Choice
What happens on a molecular level when heat is removed from an object?
the temperature decreases and the molecules move faster
the temperature increases and the molecules move slower
the temperature increases and the molecules molecules move faster
the temperature decreases and the molecules move slower
- 15. Multiple Choice
As the temperature of an abject increases, its molecules
move faster
get samller (condense)
move farther apart (expand)
move faster and farther apart (expand)
- 16. Multiple ChoiceThe property of a thermometer that allows it to indicate temperature isthermal expansionheat capacitythermal equilibriumconduction
- 17. Multiple Choice
Select all the correct responses about the ideal gas from state 1 to state 2.
The environment does work on the gas.
The gas does work on the environment.
The internal energy of the gas is increasing.
The temperature of the gas is decreasing.
This is an isobaric process.
- 18. Multiple ChoiceHeat travels from the sun to the earth by the process of...conductionconvectionradiationinsulation
- 19. Multiple Choice
If the pressure inside a container of gas has decreased, it must have been caused by...
adding heat to the gas or increasing the volume of the gas
removing heat from the gas or decreasing the volume of the gas
adding heat to the gas or decreasing the volume of the gas
removing heat from the gas or increasing the volume of the gas
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