Specific Heat Capacity Practice

Front

What type of reaction occurs in a hand warmer?

Back

Exothermic reactions release heat, making hand warmers warm to the touch.

Front

Energy is transferred as heat between two objects of ___________ temperatures.

Back

Differing temperatures.

Front

During an endothermic reaction in a beaker, if we are part of the surroundings and touched the beaker, it would feel _______.

Back

Cold, because endothermic reactions absorb heat from their surroundings.

Front

What instrument would you use to detect an endothermic or exothermic reaction?

Back

Thermometer, as it measures temperature changes.

Front

What unit do you use to measure Thermal Energy?

Back

Joules (J).

Front

Define specific heat capacity.

Back

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

Front

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

Back

Q = mcΔT, where m is mass, c is specific heat capacity, and ΔT is the change in temperature.

Front

What happens to the temperature of a substance during an endothermic reaction?

Back

The temperature decreases as the substance absorbs heat.

Front

What happens to the temperature of a substance during an exothermic reaction?

Back

The temperature increases as the substance releases heat.

Front

Give an example of an exothermic reaction.

Back

Combustion of fuels, such as burning wood or gasoline.