Honors Chemistry Final Review Part 3

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, usually in the form of heat.

Front

What happens to thermal energy during an endothermic reaction?

Back

During an endothermic reaction, thermal energy decreases in the surroundings as it is absorbed by the reactants.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy to its surroundings, usually in the form of heat.

Front

What happens to thermal energy during an exothermic reaction?

Back

During an exothermic reaction, thermal energy increases in the surroundings as it is released by the reactants.

Front

What is the relationship between temperature and volume of a gas at constant pressure?

Back

According to Charles's Law, the volume of a gas increases as the temperature of the gas increases at constant pressure.

Front

What is Charles's Law?

Back

Charles's Law states that the volume of a gas is directly proportional to its temperature (in Kelvin) when pressure is held constant.

Front

What is the formula for Charles's Law?

Back

The formula for Charles's Law is V1/T1 = V2/T2, where V is volume and T is temperature.

Front

What is thermal energy?

Back

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

Front

What is the significance of the phase changes in thermal energy?

Back

Phase changes involve the absorption or release of thermal energy, affecting the temperature and state of a substance.

Front

What is the effect of pressure on gas volume?

Back

According to Boyle's Law, the volume of a gas decreases as the pressure increases, provided the temperature remains constant.