Question

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

Answer 1

the temp increases and the pressure decreases
because in both the cases the kinetic energy of the molecules increases!

Answer 2

The temperature must increase and pressure must decrease.

Answer 3

PV=nRT , V= nRT/P , V increases with increase in temperature and decrease in pressure.

Answer 4

Thanks y'all !