Question

At constant temperature, a gas is at a pressure of 2050 mm of Mercury . At what pressure it's volume will decrease by 60%​

Answer 1

Answer:

5125 mm of Hg

Explanation:

Given: P1 = 2050 mm of Hg

P2 = ?

Let V1 = x

Volume is decreased by 60%

Decrease in volume

=60% of x

= 60*x/100 =3x/5

New Volume = x- 3x/5

= (5x-3x)/5

= 2x/5

= 0.4x

According to Boyle's law equation,

P1V1 =P2V2

2050* x = P2 * 0.4x

P2= (2050 * x) / 0.4x

= 5125 mm of Hg