Question

A sample of gas is held at constant volume. If the number of moles of this sample of gas is doubled and the pressure of this sample of gas is halved, what happens to the absolute temperature of the gas?

Select one
a. The absolute temperature is doubled.
b. The absolute temperature is halved.
c. The absolute temperature is quadrupled.
d. The absolute temperature is quartered.
e. The absolute temperature stays the same.

Answer 1

When the number of moles of a gas is doubled and the pressure is halved at constant volume, the absolute temperature of the gas remains the same.

Step-by-step explanation:

When the number of moles of a gas is doubled and the pressure is halved at constant volume, the absolute temperature of the gas remains the same. This is because the relationship between pressure and temperature, known as Gay-Lussac's law, states that pressure is directly proportional to temperature. Therefore, if the pressure is halved, the temperature will also be halved to maintain the same proportionality.

Answer 2

number of moles of gas increases the volume also increases.