Question

Question #e98d7

Answer 1

The question is based on Boyle's law, at a constant temperature , for a given mass of gas, Volume of a gas is inversely proportional to its pressure.

Mathematically it can be written as ;

`P_1` x `V_1` = `P_2` x `V_2`

`P_1` = 1.02 atm , `V_1` = 225 mL

`P_2` = 2.99 atm , `V_2` = ?

1.02 atm x 225 mL = 2.99 atm x `V_2`

Divide both the sides by 2.99

1.02 atm x 225 mL / 2.99 atm = `V_2`

`V_2` = 76.75 mL

The volume of the gas decreases from 225 mL to 76.75 mL, on increasing the pressure from 1.02 atm to 2.99 atm.