Thermochemistry

Front

Quantity of heat

Back

Q

Front

Entropy change

Back

ΔS

Front

A theory that states that bonds are broken when molecules collide with enough energy to break bonds in reactants and with the correct orientation to form bonds that make products

Back

Collision Theory

Front

Two systems are in thermodynamic equilibrium with a third system, the two original systems are in thermal equilibrium with each other.

Back

Zeroth Law of Thermodynamics

Front

The amount of heat needed to raise 1 gram of a substance by 1℃.

Back

Specific heat

Front

The first law of thermodynamics states that energy cannot be created or destroyed, only transformed.

Back

1st Law of Thermodynamics

Front

The second law of thermodynamics states that the total entropy of an isolated system can never decrease over time.

Back

2nd Law of Thermodynamics

Front

The heat absorbed or released during a chemical reaction at constant pressure.

Back

Enthalpy (ΔH)

Front

A process that absorbs heat from the surroundings.

Back

Endothermic process

Front

A process that releases heat to the surroundings.

Back

Exothermic process