Q. $125\ ml$ of gas $A$ at 0.60 atmosphere and $150\ ml$ of gas $B$ at 0.80 atmospheric pressure at same temperature is filled in a vessel of $1\ litre$ volume. What will be the total pressure of mixture at the same temperature
A) 0.140 atmosphere
B) 0.120 atmosphere
C) 0.195 atmosphere
D) 0.212 atmosphere
Explanation
(c) Pressure of gas $A,\ P_{A} = \frac{125 \times 0.6}{1000} = 0.075\ atm$
Pressure of gas $B,\ P_{B} = \frac{150 \times 0.8}{100} = 0.120\ atm$
Hence, by using Dalton’s law of pressure
$P_{mixture} = P_{A} + P_{B} = 0.075 + 0.120 = 0.195\ atm$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.