Question

9. A gas at 240 K is heated to 127°C. Find the percentage
change in the volume of the gas (pressure remaining
constant).
[Ans. 66.6%]
rtain amount of a gas occupies a volume of 0.4 litre at
17°C. To what temperature should it be heated so that its
volume gets (a) doubled (b) reduced to half, pressure
remaining constant ? [Ans. (a) 307°C, (b) -128°C]
11. A given mass of a gas occupies 143 cm3 at 27°C and
700 mm Hg pressure. What will be its volume at 300 K
and 280 mm Hg pressure ?
[Ans. 357.5 cm]
12. A gas occupies 500 cm3 at normal temperature. At what
temperature will the volume of the gas be reduced by
20% of its original volume, pressure being constant ?
[Ans. 218.4 K)
13. Calculate the final volume of a gas 'X', if the original
pressure of the gas, at S.T.P. is doubled and its
temperature is increased three times.
[Ans. 1 times the original volume)​

Answer 1

Answer:

Solution:

V1 = x

T1 = (273 – 33) = 240 K

T2 = (273 + 127) = 400 K

V2 =V1/T1 x T2 = x x 400/240

Increase in volume = 5/3 x - x=2/3 x

% increase in volume = 2 x/3 x x 100 =66.67%

Answer 2

Explanation:

All answers are given already