Honors Thermochemistry

Front

What is an endothermic process?

Back

An endothermic process is one that absorbs heat from its surroundings, resulting in a decrease in temperature of the surroundings.

Front

What is an exothermic process?

Back

An exothermic process is one that releases heat to its surroundings, resulting in an increase in temperature of the surroundings.

Front

What must be true for heat to flow between two substances?

Back

They must have different temperatures.

Front

What does a high specific heat indicate about a substance?

Back

It requires more energy to change its temperature.

Front

What happens to the temperature of surroundings during an exothermic reaction?

Back

The temperature of the surroundings increases.

Front

What happens to the temperature of surroundings during an endothermic reaction?

Back

The temperature of the surroundings decreases.

Front

What is the definition of specific heat?

Back

Specific heat is the amount of heat required to raise the temperature of one gram of a substance by one degree Celsius.

Front

What is the relationship between reactants and products in an exothermic reaction?

Back

The energy contained in the products is lower than the energy contained in the reactants.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to its temperature.

Front

What is the formula for calculating heat energy (q)?

Back

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