At the molecular level, how would the helium atoms be affected if you put the balloons in the trunk of your car on a hot summer day?
A. The helium atoms in the balloon would move further apart.
B. There would be no effect on the helium atoms in the balloon.
C. The helium atoms in the balloon would move closer together.
D. The helium atoms in the balloon would move slower.
E. The helium atoms in the balloon would move faster.