(b) Partial pressure $= \frac{no.of\ moles\ of\ gas \times p_{Total}}{total\ no.of\ moles}$ $1.5 = \frac{5 \times p_{total}}{2 + 3 + 5 + 10}$ $\frac{1.5 \times 20}{5} = p_{total}$ $p_{total} = 6\ atm$
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.