Verified Solution • 2025–26 Session
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QNEET-2020-Ch-658: NEET 2020 Chemistry - Class 11 NEET-2020-Ch-658 Solution: A mixture of \(N_2\) and Ar gases in a cylinder contains 7 g of …
A mixture of and Ar gases in a cylinder contains 7 g of and 8 g of Ar. If the total pressure of the mixture of the gases in the cylinder is 27 bar the partial pressure of is: [Use atomic masses (in g ): N = 14 Ar = 40] 12 bar 15 bar 18 bar 9 bar
Multiple Choice Options
- A 12 bar
- B 15 bar
- C 18 bar
- D 9 bar
Step-by-Step Verified Solution
n N 2 = 7 28 = 0.25
n A r = 8 40 = 0.2
Now, applying Dalton's law of partial pressure,
P N 2 = n N 2 n N 2 + n A r _ P T o t a l
= 0.25 0.45 _ 27
bar
= 15 bar