Heat and Temperature Quiz

What is the SI unit of heat?

• Joule

• Calorie

• Kelvin

• Watt

What is the amount of heat required to raise the temperature of one gram of water by one degree Celsius?

• 2 calories

• 10 joules

• 1 calorie

• 4.186 joules

What is the temperature in Kelvin if the temperature in degree Celsius is 38?

• 300 K

• 250 K

• 350 K

• 311 K

What is the process of escaping of molecules from the surface of a liquid at any temperature called?

• Condensation

• Sublimation

• Vaporization

• Evaporation

What is the heat energy required to change one gram of liquid to gas at a constant temperature called?

• Specific heat

• Latent heat of fusion

• Heat capacity

• Latent heat of vaporization

What is the temperature at which a liquid turns into a gas called?

• Freezing point

• Melting point

• Condensation point

• Boiling point

What is the state of a body where it neither receives nor gives out energy called?

• Thermal radiation

• Thermal conductivity

• Thermal expansion

• Thermal equilibrium

What is the average kinetic energy of molecules of a hotter body compared to a colder body?

• Depends on the substance

• Equal

• Greater

• Less

What is the process in which the liquid phase changes to gaseous phase at a constant temperature called?

• Evaporation

• Sublimation

• Vaporization

• Condensation

What is the heat energy required to convert one gram of solid completely into liquid at a constant temperature called?

• Latent heat of fusion

• Specific heat

• Heat capacity

• Latent heat of vaporization