Understanding Thermal Processes

What remains constant in an isothermal process?

• Pressure

• Volume

• Internal Energy

• Temperature

In an isothermal process, if 300 joules of work is done on the gas, what must happen to maintain constant temperature?

• 300 joules of heat must leave the gas

• The pressure must decrease

• 300 joules of heat must enter the gas

• The volume must increase

How can you ensure a process remains isothermal?

• Increase the pressure rapidly

• Decrease the volume rapidly

• Use a thermal reservoir

• Conduct the process quickly

On a PV diagram, how is an isothermal process represented?

• As a straight line

• As a curve like 1/x

• As a vertical line

• As a horizontal line

What is constant in an isometric process?

• Temperature

• Volume

• Internal Energy

• Pressure

In an isometric process, what is the work done?

• Equal to the heat added

• Equal to the pressure change

• Equal to the change in internal energy

• Zero

What is a key characteristic of an adiabatic process?

• No change in volume

• No heat exchange

• Constant temperature

• Constant pressure

How can you ensure a process is adiabatic?

• Maintain constant pressure

• Insulate the system and conduct the process quickly

• Use a thermal reservoir

• Conduct the process slowly

In an adiabatic process, how is energy transferred?

• By maintaining constant temperature

• By maintaining constant volume

• By doing work on or by the gas

• Through heat exchange

What happens to the temperature in an adiabatic process?

• It remains constant

• It can change

• It always decreases

• It always increases