Question

When the temperature of the gas changes from cold to hot, the amount of pressure is ___________.

A.) decreasing
B.) increasing
C.) stays constant
D.) none of the above

Answer 1

Assuming constant volume, if you increase temperature, the pressure will increase. So it is B: increasing

Answer 2

Assume that the gas being referred to above is ideal such that by Gay - Lussac's Law:
T1P2 = T2P1
Thus, increasing the value of the temperature, would also correspond to an increase in the value of the pressure. This is because the molecules are moving faster at a higher temperature.