Topic 3.1 Thermal Concepts - Intro

This state of matter has very strong inter-particle forces and has a regular arrangement of their atoms.

• solid

• liquid

• gas

• plasma

It measures the average random kinetic energy of molecules in a substance.

• heat

• temperature

• internal energy

• kelvin

The lowest possible temperature.

• -10 K

• 0 K

• 0 ⁰C

• 273 K

Convert 37 ^oC to kelvin

• -37 K

• 37 K

• 236 K

• 310 K

When objects are in thermal equilibrium,

• both will have the same temperature

• energy transfer will continue to take place

• the hotter object has greater internal energy

• both objects will have unequal internal energy

Internal energy is

• the total random kinetic energy of the particles of a substance

• the inter-particle potential energy of the particles

• sum of the total random kinetic energy and potential energy of the particles

• the energy that is transferred from one body to another

It refers to energy required to increase the temperature of a unit mass of the body by one kelvin.

• specific heat capacity

• heat capacity

• latent heat

• specific latent heat

This refers to the amount of energy required to heat a body by 1K.

• specific heat capacity

• heat capacity

• latent heat

• specific latent heat

The amount of energy required to change phase of a unit mass at constant temperature.

• specific heat capacity

• heat capacity

• latent heat

• specific latent heat

Why does the heat absorbed by an ice cube not result in a temperature change?

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