Thermal Energy and Chemical Reactions

Front

What is the standard Unit for temperature?

Back

Degrees Celsius (°C)

Front

Define 'Enthalpy'

Back

Energy stored in the chemical bonds in a substance.

Front

What type of reaction occurs in a hand warmer?

Back

Exothermic.

Front

_____ reactions usually feel hot!

Back

Exothermic.

Front

What is thermal energy?

Back

The total kinetic energy of particles in a substance.

Front

What is an exothermic reaction?

Back

A reaction that releases heat to its surroundings.

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings.

Front

What is the law of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed.

Front

What is specific heat capacity?

Back

The amount of heat required to raise the temperature of 1 kg of a substance by 1°C.

Front

What happens to the temperature of water when it freezes?

Back

The temperature remains constant until all the water has frozen.