SG Energy & Thermodynamics

Front

What is melting considered, in terms of energy change?

Back

Melting is considered an endothermic process, meaning it absorbs heat energy from the surroundings.

Front

Between which points is the temperature of the substance remaining constant?

Back

The temperature of the substance remains constant between the phase change points B-C and D-E.

Front

What is 100 °C in Kelvin?

Back

100 °C is equivalent to 373 K.

Front

What is the symbol for the heat of reaction?

Back

Front

What unit is used to measure heat energy?

Back

The unit used to measure heat energy is Joules.

Front

What is the definition of thermodynamics?

Back

Thermodynamics is the branch of physics that deals with the relationships between heat and other forms of energy.

Front

What is the first law of thermodynamics?

Back

The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat energy to its surroundings.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat energy from its surroundings.

Front

What is the specific heat capacity?

Back

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