Heating Curves & Calorimetry

Front

What is a heating curve?

Back

A heating curve is a graphical representation of the temperature change of a substance as it is heated over time, showing phase changes and temperature increases.

Front

What does ΔT represent in calorimetry?

Back

ΔT represents the change in temperature of a substance, calculated as the final temperature minus the initial temperature.

Front

What is the formula for calculating heat (q) in calorimetry?

Back

q = m * c * ΔT, where m is mass, c is specific heat capacity, and ΔT is the change in temperature.

Front

What are the phases of matter involved in a heating curve?

Back

The phases of matter involved are solid, liquid, and gas.

Front

What happens to kinetic energy during a phase change?

Back

During a phase change, the kinetic energy remains constant while potential energy changes.

Front

What is the significance of the flat segments on a heating curve?

Back

The flat segments represent phase changes where temperature remains constant as heat is added or removed.

Front

What state(s) of matter are present at segment D-E on a heating curve?

Back

Liquid-gas, indicating the transition from liquid to gas (boiling).

Front

In which segment of a heating curve does temperature increase while the substance is in a single phase?

Back

Segments A-B and C-D, where the substance is either solid or liquid.

Front

What does the letter 'q' represent in calorimetry?

Back

The letter 'q' represents the amount of heat energy absorbed or released by a substance.

Front

What is specific heat capacity (c)?

Back

Specific heat capacity is the amount of heat required to raise the temperature of 1 gram of a substance by 1°C.