The volume of a given quantity of a gas must increase if: the temperature and pressure increase the temperature and pressure decrease the temperature increases and the pressure decreases the temperature decreases and the pressure increases

the temperature increases and the pressure decreases

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

    (At constant temperature and number of moles)

Thus as pressure and volume are inversely related, as pressure decrease, the volume increase.

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

    (At constant pressure and number of moles)

Thus as temperature and volume are directly related, as temperature increase, the volume increase.

0 = 0.40 / 0 = 0

= 0.20 = 9.80 ⁄2 =?

=0 , = = 0.20 =0.50 0 0.40 ⁄

=0−122 =0−12(9.80 ⁄2)(0.50)2 =1.2