If a gas is moved from a large container to a small container but its temperature and number of moles remain the same, what would happen to the pressure of the gas? It would increase. It would be halved. It would stay the same It would slightly decrease.

It would increase.<br /><br />According to Boyle's Law, for a given amount of gas at constant temperature, the pressure of the gas is inversely proportional to its volume. Therefore, if the gas is moved from a large container to a small container while keeping the temperature and number of moles constant, the pressure will increase.