8. Which statement about warmth and coldness is true? Explain your choice a. Thermal energy is the total potential and the total kinetic energy possessed by the particles of a substance. b. Temperature is a measure of the total kinetic energy of the particles in a substance. c. The kinetic molecular theory states that as particles of matter gain kinetic energy, they move faster and the temperature of the substance decreases. d. Scientists typically use the Fahrenheit temperature scale. 9. How many changes of state are shown in this heating graph? Explain your choice O m Temperature C A Thermal energy W N- A poop