Lesson 2 Quarter 3 (Physics 2)

Thermodynamic Part 2

Law of Heat Exchange

This law states that the heat given up by a hotter body is equal to the heat absorbed by a colder body.

heat gained

the heat lost is equal to the ?

Zeroth Law

It states that if two systems are in thermodynamic equilibrium with a third system, the two original systems are in thermal equilibrium with each other.

First Law

states that energy can be converted from one form to another with the interaction of heat, work and internal energy, but it cannot be created nor destroyed, under any circumstances.

Second Law

states that the state of entropy of the entire universe, as an isolated system, will always increase over time

Entropy

measure of the disorder of a system or energy unavailable to do work

Third Law

states that the system’s entropy approaches a constant value as its temperature approaches absolute zero

Latent Heat

When substances change in phase (e.g. Solid to Liquid), there exists an associated heat requirement that does not show as change in temperature. The nature of this heat requirement is called ?

Latent Heat

the basis for constant associated with the heat required to change the phase of a

material.

Condensation

Gas to Liquid

Deposition

Gas to Solid

Sublimation

Solid to Gas

Melting or Fusion

Solid to Liquid

Vaporization

Liquid to Gas

freezing

Liquid to Solid

Latent Heat of Fusion

It is the quantity of heat needed to change solid state to liquid state.

Latent Heat of Vaporization

It is the quantity of heat needed to change liquid state to gas state.

Solid

Linear expansion is for ? substance

liquid

Volume expansion is for ? substance

linear and volume

types of thermal expansion

thermal expansion

an object expand when experiencing heat or a change in temperature