Which phrase correctly describes temperature?
A. average rotational kinetic energy of the particles in an object
B. average energy of the particles in an object
C. average transnational kinetic energy of the particles in an object
D. all energy possessed by the particles in an object
C. average transnational kinetic energy of the particles in an object
Explanation;
Temperature measures the average kinetic energy of the particles in a substance. Thermal energy measures the total kinetic energy of the particles in a substance. The greater the motion of particles, the higher a substance's temperature and thermal energy.
Therefore we could say that the average kinetic energy of a gas particle is directly proportional to the temperature. Hence an increase in temperature increases the speed in which the gas molecules move. All gases at a given temperature have the same average kinetic energy.
