AP EAMCET202315 May 2023Morning ShiftChemistrySome Basic Concepts of ChemistryActual
A 100 ~L cylinder containing H ₂ exerted a pressure of 4 ~atm at 300 ~K . It was accidentally opened and some H ₂ was escaped. When it was closed, it exerted a pressure of 3 ~atm at 300 ~K . The number of moles of H ₂ remaining in the cylinder is equal to (Assume H ₂ as an ideal gas; R = gas constant)
Options
- A1 2 R
- BR
- C1 R
- D2 R
Correct answer
C. 1 R
Step-by-step solution
n ₁= P ₁ ~V RT = 4 ~V RT and n ₂= P ₂ ~V RT = 3 ~V RT Number of moles remaining = 4 ~V RT - 3 ~V RT = 1 R