A 10 g mixture of hydrogen and helium is contained in a vessel of capacity 0.0125 m at 6 bar and 27°C. The mass of helium in the mixture is ______ g. (nearest integer)
Given: R = 8.3 J K mol (Atomic masses of H and He are 1 u and 4 u, respectively)
← JEE Main 2022 · 26 Jul · Shift 2
ChemistryInteger+4 / -1Question 81 of 90
JEE Main 2022 · 26 Jul · Shift 2, Chemistry question 81
Answer and worked solution
Official answer: 8
Moles. .
Split. and (H₂ and He): mol He, i.e. 7.95 g.
Answer: 8