When the temperature of a gas is increased at a constant pressure, its volume increases. When the temperature of a gas is devreased at constnt pressure, its volume decreases..
Volume and temperature are directly proportional to each other and so when temperature is increased the volume also increase and vise virsa
Its pressure decreases.
the gas in question's volume decreases at a constant rate as well, but check me on some science site just to make sure.
pressure increases