Given the heating curve for 1 mole of methanol, we are asked to calculate q_solid for methanol.

Recall: In Heating curves, we have the representation of the amount of heat absorbed during phase changes. As the reaction progress, a phase change or temperature change can occur.

During a phase change,

• Temperature is constant
• Avg. Kinetic Energy is constant
• Heat is transferred into potential energy

During a temperature change.

• Heat energy is converted into Kinetic Energy
• Increase in temperature causes increase in Kinetic Energy
• Decrease in temperature causes decrease in Kinetic Energy