JEE Main · PhysicsHard
A container of volume contains a mixture of two ideal gases with molar masses and . If the total pressure is and the temperature is , the number density of the mixture is
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: A —
Solution
- From the ideal gas law, , where is the total number of molecules.
- The number density .
- Rearranging the ideal gas law, .
- Hence the answer is (A).
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