If the number of moles of gas is halved at constant temperature and volume,the pressure of the gas
A)is doubled.
B)is halved.
C)is one-fifth.
D)remains the same.

Question

Quizplus · Accepted Answer

According to Avogadro's Law, at constant temperature and pressure, the volume of a gas is directly proportional to the number of moles of gas. Therefore, if the number of moles is halved while the volume is constant, the pressure must also be halved to maintain the same temperature and volume.

If the Number of Moles of Gas Is Halved at Constant