Question

$4.4{CO}_2$ gas and 2.24 litre of $H_2$ gas at S.T.P are taken in a 1 litre container at $27$. The total pressure of gases in container will be ?

• A. 4.926 atm
• B. 3743.76 mm of Hg
• C. 1871.88 mm of Hg
• D. 2.463 atm

Answer 1

Answer: (A)

4.926 atm

$PV=nRT$

$4.4g$ of $C{O}_2=\frac{4.4}{44}=0.1$ mole

$2.24L$ of $H_2=\frac{2.24}{22.4}=0.1$ mole

Total number of moles= $0.2$ moles

$\therefore P=\frac{nRT}{V}=\frac{0.2\times 0.082\times (27+273)}{1}$

$=4.92atm$