the gas pressure p, gas volume v, and gas temperature t are given in the formula: pv=nrt,
r is the gas constant, and n is the number of gas moles.
if the container is cooled and remains under atmospheric pressure, where r is a constant that does not change, the volume of the container remains the same, the conclusion is drawn that, with all other values ​​unchanged, the number of gas moles n, is decreases.
the right answer is a.