If the kinetic energy of a sample increases, the will also increase. potential energy temperature chemical energy nuclear energy

temperature

Explanation:

1. Potential energy is the energy possessed by an object by virtue of its position.

2. Kinetic energy is the energy possessed by an object by virtue of its motion. It is determined by the equation:

From above, it is visible that kinetic energy is directly related to the temperature of the system. So, if kinetic energy of  a sample increases, the temperature of the system also increases.

3. Chemical energy is the energy possessed in the bonds of the molecules.

4. Nuclear energy is the energy possessed in the nucleus of an atom

chemistry sucks a**

explanation:

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.