A 10 g mixture of hydrogen and helium is contained in a vessel of capacity 0.0125 m^3 at 6 bar and 27 °C. The mass of helium in the mixture is…

Question

A 10 g mixture of hydrogen and helium is contained in a vessel of capacity 0.0125 m^3 at 6 bar and 27 °C. The mass of helium in the mixture is ..... g. (Given : R=8.3JK^(-1) mol^(-1) (Atomic masses of H and He are 1u and 4u, respectively)

MARKS Content Team · Accepted Answer

Correct answer: 8. PV=n_mixRT n_mix=(6×12.5)/(0.083×300)≈3 Out of total 3 moles Let mole of He=x Mole of H_2=3-x Then total mass of the mixture will be = 4x+23-x=10 Number of moles of He gas x=2 mol Mass of He= number of moles × molar mass = 8 g

A $10 g$ mixture of hydrogen and helium is contained in a vessel of capacity $0.0125 m^{3}$ at $6$ bar and $27 ° C$ . The mass of helium in the mixture is ..... $g$ .
(Given : $R = 8.3 {JK}^{- 1} {mol}^{- 1}$ (Atomic masses of $H$ and $He$ are $1 u$ and $4 u$ , respectively)

Solution

Relevant Questions

A 10 g mixture of hydrogen and helium is contained in a vessel of capacity 0.0125 m3 at 6 bar and 27 °C. The mass of helium in the mixture is ..... g.(Given : R=8.3JK-1 mol-1 (Atomic masses of H and He are 1u and 4u, respectively)

Solution

Relevant Questions

A $10 g$ mixture of hydrogen and helium is contained in a vessel of capacity $0.0125 m^{3}$ at $6$ bar and $27 ° C$ . The mass of helium in the mixture is ..... $g$ .
(Given : $R = 8.3 {JK}^{- 1} {mol}^{- 1}$ (Atomic masses of $H$ and $He$ are $1 u$ and $4 u$ , respectively)