Thermodynamics Vocabulary

Question 1

A measure of the average kinetic energy of the particles in a sample of matter

Answer 1

Temperature

Question 2

The entropy of a pure Krystal at 0K is zero

Answer 2

Third law of thermodynamics

Question 3

A measure of the energy released or consumed when one mole of a substance is created under standard conditions

Answer 3

Heat of formation

Question 4

The amount of heat energy absorbed or release from a chemical reaction

Answer 4

Enthalpy

Question 5

A form of energy transferred between objects with different temperatures

Answer 5

Heat

Question 6

Tendency for a system to go to a lower state of energy or become more random

Answer 6

Spontaneous

Question 7

For a spontaneous process the entropy of the universe increases

Answer 7

Specific heat capacity

Question 8

The phase change that occurs when a solid becomes a gas

Answer 8

Sublimation

Question 9

For a spontaneous process the entropic the universe increases

Answer 9

Second law of thermodynamics

Question 10

A substance changes from one state of matter to another

Answer 10

Phase change

Question 11

Energy can not be created or destroyed only transferred

Answer 11

First law of thermodynamics

Question 12

System releases energy to the surrounding

Answer 12

Exothermic

Question 13

System absorbs energy from the surroundings

Answer 13

Endothermic

Question 14

Used to help determine the likelihood of a reaction being spontaneous

Answer 14

Gibbs law

Question 15

A measure of the disorder or randomness of a system

Answer 15

Entropy

Question 16

The law used to find the sum of the enthalpy change for a reaction given the enthalpy for smaller individual reactions

Answer 16

Hess’s law