Where p = pressure v = volume n = number of moles r = the universal gas constant t = temperature in degrees kelvin if you fill up a balloon with a small amount of air, then set it in direct sunlight, you will see that the balloon expands. this expansion is due to an increase in volume, which results from an increase in the temperature of the air in the balloon. this increase in temperature increases the of the gas, which results in the gas particles moving faster and colliding more often with the wall of the container. these collisions are what increase the pressure of the gas on the balloon, and ultimately cause the balloon to stretch out. a) moles b) spin energy c) kinetic energy d) potential energy

c

Explanation:

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.