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Equal volumes of two monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of specific heats (Cp/Cv) of the mixture will be:

1. 0.83
2. 1.50
3. 3.3
4. 1.67

Correct answer: 1.67

Solution

For monoatomic gases, the ratio of specific heats (Cp/Cv) is 1.67. Since both gases are monoatomic and mixed in equal volumes, the ratio remains unchanged at 1.67.

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