Concept 4 Notes - Thermochemistry

Multiple Choice

Which of the following best describes a chemical change in thermochemistry?

• A chemical reaction involving energy change

• A phase change without energy transfer

• A physical change with no energy involved

• A chemical reaction with no energy change

Multiple Choice

What is thermal energy dependent on?

• Temperature and number of particles

• Pressure and volume

• Mass and velocity

• Density and volume

Multiple Choice

Which of the following substances has the highest specific heat?

• Pb (s)

• Cu (s)

• Fe (s)

• H2O (l)

Labelling

Label the parts of the equation

Drag labels to their correct position on the image

mass

specific heat

Heat

change in temperature

Multiple Choice

The formula q = mcΔT is used to calculate the change in thermal energy. What does 'c' represent in this formula?

• Mass

• Specific heat

• Temperature change

• Heat

​ODD ONLY!!!!
This means that everything else is extra practice!

Multiple Choice

What are the three methods of heat transfer?

• Conduction, Convection, Radiation

• Conduction, Reflection, Refraction

• Convection, Radiation, Absorption

• Radiation, Conduction, Insulation

Multiple Choice

What is the primary focus of thermochemistry?

• The study of chemical reactions

• The study of phase changes

• The study of the transfer of energy as heat

• The study of physical changes

Multiple Choice

Which of the following statements about calorimetry is true?

• A calorimeter measures the energy absorbed or released as heat.

• A calorimeter measures the temperature change only.

• A calorimeter is used to measure the speed of a reaction.

• A calorimeter is used to measure the mass of a substance.

Poll

How do you feel about calculating q?