The temperature of the air in a basketball increases as it is pumped up. This me
ID: 1704787 • Letter: T
Question
The temperature of the air in a basketball increases as it is pumped up.This means that: (Choose the best answer)
A)The total kinetic energy of the air is increasing and the average kinetic energy of each atom is decreasing.
B)The total kinetic energy of the air is increasing and the average kinetic energy of each atom is increasing.
C)The total kinetic energy of the air is decreasing and the average kinetic energy of each atom is decreasing.
D)The total kinetic energy of the air is decreasing and the average kinetic energy of each atom is increasing.
Explanation / Answer
Both total kinetic energy and average kinetic energy per atom increases Hence the correct option is (B) B)The total kinetic energy of the air is increasing and the average kinetic energy of each atom is increasing. Reason : due to pumping, average kinetic energy of the molecule increases and and as volume increases , separation between the molecule increases hence total potential energy decreases hence total kinetic energy also increases.
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