Heating Curves

Front

What holds molecules in a solid close to each other?

Back

Intermolecular forces

Front

Are the freezing and melting points of water the same?

Back

True

Front

In a heating curve, what do diagonal lines indicate?

Back

Temperature is changing.

Front

In a heating curve, what do flat lines indicate?

Back

Temperature is constant.

Front

Which point on the graph has the highest average kinetic energy?

Back

Point A

Front

From point A to point F, what type of process is occurring?

Back

Exothermic process by releasing heat to the surroundings.

Front

What is a heating curve?

Back

A graph that shows the change in temperature of a substance as it is heated over time.

Front

What happens to the temperature during a phase change?

Back

The temperature remains constant.

Front

What is kinetic energy?

Back

The energy of an object due to its motion.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, the average kinetic energy of the molecules increases.