Question

a gas occupies 1500cm3 at pressure of 720mm of mercury . find at what pressure its volume is 1000cm3 . assume temperature remains constant throughout the experiment​

Answer 1

Answer:

According to Boyle’s Law:

P1V1 = P2V2

Based on the above data;

P1 = 720 mm Hg

V1 = 1500 cm3 = 1.5 L

V2 = 1000 cm3 = 1 L

P2 = ?

By substituting the values in the Boyle’s Law

P2= (P1 x V1) / V2

   = (720 mm Hg x 1.5 L) / 1 L

  = 1080 mm Hg

Thus the pressure at which the volume of the gas becomes 1000 cm3 is 1080 mm Hg.