Question

1. Volume of certain amount of a gas at 25°C and
100 cm Hg pressure is 80 mL. The gas is
expanded to 160 mL keeping the temperature
constant. Calculate the pressure of the expanded
gas.
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Answer 1

Answer:

50 cm of Hg  

Explanation:

V1 = 80ml

P1 = 100cm

V2 =160ml

P2 = 740 mm

P1V1 = P2V2

P2 = P1V1/V2 = 100 x 80 / 160

= 50 cm of Hg