Thermodynamics Review

Front

What is the measure of energy dispersal in a system?

Back

Entropy

Front

What do we call a reaction that absorbs energy?

Back

Endothermic

Front

What type of enthalpy change is associated with an exothermic reaction?

Back

Negative enthalpy change.

Front

When will an endothermic reaction that decreases in entropy be spontaneous?

Back

Never.

Front

What do we call a reaction that releases energy?

Back

Exothermic.

Front

Define thermodynamics.

Back

The branch of physics that deals with heat, work, and energy.

Front

What is the first law of thermodynamics?

Back

Energy cannot be created or destroyed, only transformed.

Front

What is the second law of thermodynamics?

Back

The total entropy of an isolated system can never decrease over time.

Front

What is enthalpy?

Back

A measure of the total energy of a thermodynamic system.

Front

What is the difference between heat and temperature?

Back

Heat is energy transferred due to temperature difference; temperature is a measure of the average kinetic energy of particles.