Which of these best describes how the kinetic energy of carbon dioxide molecules change as the carbon dioxide is heated?

Kinetic energy decreases.
Kinetic energy increases.
Kinetic energy increases, then decreases.
Kinetic energy decreases, then increases.

Question

Which of these best describes how the kinetic energy of carbon dioxide molecules change as the carbon dioxide is heated? 
  
 Kinetic energy decreases. 
 Kinetic energy increases. 
 Kinetic energy increases, then decreases. 
 Kinetic energy decreases, then increases.

ipwnbunnies · Answer

If we're adding heat to carbon dioxide, that means the temperature is also increasing. Kinetic energy is also proportional to temperature.

anonymous · Answer

B?

ipwnbunnies · Answer

It should be. I would ask for a second opinion. I'm 75% sure.

anonymous · Answer

Thank you :)

frostbite · Answer

It is true what IPwnBunnies said.
From the Boltzmann distribution you can show that the average kinetic energy for particles in a 3 dimensional room is proportional to $\large \frac{3}{2}k$, where $k$ is the Boltzmann constant.