Exploring Energy and Thermodynamics Concepts

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy in the form of heat to its surroundings, resulting in a decrease in the energy of the products compared to the reactants.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs energy from its surroundings, resulting in an increase in the energy of the products compared to the reactants.

Front

How does energy flow in a system?

Back

Energy flows in a system by transforming from one type to another, such as from chemical energy to thermal energy, and can be transferred between objects or systems.

Front

What is thermal energy?

Back

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

Front

What is temperature?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two substances reach the same temperature and no heat flows between them.

Front

What is the difference between thermal energy and temperature?

Back

Thermal energy is the total kinetic energy of particles, while temperature is the average kinetic energy of particles.

Front

What happens to energy in an exothermic reaction?

Back

In an exothermic reaction, energy is released to the surroundings, causing the temperature of the surroundings to increase.

Front

What happens to energy in an endothermic reaction?

Back

In an endothermic reaction, energy is absorbed from the surroundings, causing the temperature of the surroundings to decrease.

Front

Can energy be created or destroyed?

Back

No, according to the law of conservation of energy, energy cannot be created or destroyed; it can only be transformed from one form to another.