Fall Final Review Flashcard

Front

What is the First Law of Thermodynamics?

Back

Energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the Second Law of Thermodynamics?

Back

In any energy transfer, the total entropy of a closed system can never decrease over time.

Front

What is the Third Law of Thermodynamics?

Back

As temperature approaches absolute zero, the entropy of a perfect crystal approaches zero.

Front

What is the molar mass of CO₂?

Back

44.01 g/mol.

Front

What is a saturated solution?

Back

A solution in which no more solute can dissolve at a given temperature.

Front

What is an unsaturated solution?

Back

A solution that can still dissolve more solute at a given temperature.

Front

What is a supersaturated solution?

Back

A solution that contains more dissolved solute than is normally possible at a given temperature.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings, often in the form of heat.

Front

What is an exothermic reaction?

Back

A reaction that releases energy to its surroundings, often in the form of heat.

Front

Give an example of an endothermic reaction.

Back

Photosynthesis.