Chemistry II Unit 8 Review

Front

What is the sign of ΔH in an endothermic reaction?

Back

Positive

Front

Which law states that disorder is more likely than order?

Back

2nd law of thermodynamics

Front

Does a flowing stream have more or less entropy than a calm lake?

Back

More entropy

Front

What type of reaction occurs when sherbet sweets fizz in your mouth?

Back

Endothermic reaction

Front

What must a precipitation reaction have?

Back

A solid ionic product from aqueous reactants

Front

Define entropy in the context of thermodynamics.

Back

A measure of disorder or randomness in a system.

Front

What is the 1st law of thermodynamics?

Back

Energy cannot be created or destroyed, only transformed.

Front

What is an exothermic reaction?

Back

A reaction that releases heat to its surroundings.

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings.

Front

What is the 0th law of thermodynamics?

Back

If two systems are in thermal equilibrium with a third system, they are in thermal equilibrium with each other.