Question

Calculate the pressure of 2.5l of dry hydrogen if it occupies the volume of 3l at 1.2 atmosphere assume that the temperature remains constant

Answer 1

Answer:-

Given:

Initial Volume (V1) = 2.5 L

Final Volume (V2) = 3 L

Final Pressure (P2) = 1.2 atm.

Let the Initial pressure of Hydrogen be "P1".

We know that,

Boyle's law of gases states that at constant temperature the pressure of a gas is inversely proportional to it's Volume.

→ P ∝ 1/V

→ PV = k [ Constant ]

→ P1V1 = P2V2

→ P1 * (2.5) = (3) * (1.2)

→ P1 = (3) * (1.2) / 2.5

→ P1 = 1.44 atm.

Therefore, the Initial Pressure of Hydrogen is 1.44 atm.