Question

Which of these statements describes this mathematical equation?

Answer 1

Answer: The final pressure of a gas is inversely proportional to the volume change and directly proportional to temperature change.

Explanation:

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

$P\propto \frac{1}{V}$     (At constant temperature and number of moles)

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

$V\propto T$    (At constant pressure and number of moles)

The combined gas equation is,

$\frac{P_1V_1}{T_1}=k$

Thus pressure and volume bear inverse relationship but volume and temperature bear direct relationship.

Answer 2

The answer is A.)The final pressure of a gas is directly proportional to volume and temperature change.