Thermochemistry Unit Review

What does temperature measure?

• Heat
• ºC
• Kinetic Energy
• Thermal Energy

How is energy represented in a thermochemical equation for an endothermic reaction? Select all that apply

• On the reactant side

• On the product side

What type of reaction is shown in the picture?

• endothermic

• exothermic

• decomposition

• combustion

Which of the following correctly describes energy flow during an exothermic process?

• From the system to the surroundings

• From the surroundings to the system

• From the reactants to the products

• From the universe to the calorimeter

What does q stand for?

• Heat-Joules

• Mass-Grams

• Specific Heat-J/g*C

• Temperature Change-*C

What does c stand for?

• Heat-Joules

• Mass-Grams

• Specific Heat-J/g*C

• Temperature Change-*C

___________________ is the capacity to do work or supply heat.

• energy

• heat changes

• specific heat

• thermochemistry

What device is used to measure the amount of heat involved in a chemical reaction or physical process?

• barometer

• calorimeter

• thermometer

The law of conservation of energy states that

• in any chemical or physical change, energy cannot be created or destroyed, only changed in form.

• heat changes occur during chemical and physical changes.

• energy is the capacity to do work or to supply heat

• there are two types of energy, kinetic and potential

The diagram represents two solids and the temperature of each. What occurs when the two solids are placed in contact with each other?

• Heat energy flows from solid A to solid B. Solid A decreases in temperature

• Heat energy flows from solid A to solid B. Solid A increases in temperature

• Heat energy flows from solid B to solid A. Solid B decreases in temperature.

• Heat energy flows from solid B to solid A. Solid B increases in temperature.