Thermodynamics Quiz

When a solid changes directly into a gas, it undergoes:

• Evaporation

• Sublimation

• Melting

• Boiling

Which of the following is NOT a fluid?

• Water

• Air

• Steel

• Oil

When a substance changes from a liquid to a gas, it absorbs heat during the process. This is known as:

• Sensible heat

• Latent heat of vaporization

• Specific heat

• Enthalpy

Which of the following types of systems allows NO exchange of matter but allows exchange of energy?

• Open system

• Closed system

• Isolated system

• Adiabatic system

A cup of hot coffee cooling down in a room is an example of which type of system?

• Open system

• Closed system

• Isolated system

• Adiabatic system

In an isolated system, what remains constant?

• Temperature

• Pressure

• Volume

• Total energy

Which of the following units represents an intensive property?

• J/kg

• J

• kg/m³

• m³

Which property remains constant when dividing a gas sample in half?

• Total internal energy

• Pressure

• Mass

• Temperature

Heat is an:

• Extensive property

• Intensive property

• Both extensive and intensive, depending on the system

• Neither extensive nor intensive

If you take equal amounts of two different liquids, their combined:

• Viscosity will remain the same.

• Surface tension will remain the same.

• Density will be the sum of the individual densities.

• Boiling point will remain the same