Question

Pure hydrogen sulphide is stored in a tank of
100 litre capacity at 20°C and 2 atm. pressure.
The weight of gas in grams will be :
(a) 34 g (b) 340 g
(c) 282.4 g (d) 28.24 g

Answer 1

Explanation:

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Explanation:

The given data :

Volume ( V ) = 100 liter = 0.001 * 100 m³ = 0.1 m³

Temperature ( T) = 20° C = 273 + 20 = 293 K

Pressure ( P ) = 2 atm = 2 * 1.01 * 10⁵ pa = 202000 Pa

We know the ideal gas equation.

PV = mRT

m = mass of the gas

R = gas constant of H₂S = 243.96 J/KgK

Substituting the values in equation,

202000 * 0.1 = m * 243.96 * 293

m = 202000*0.1/243.96*293

m=282.4g