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What is the ratio of the molar heat at constant pressure to the molar heat at constant volume for a noble gas?

What is the ratio of the molar heat at constant pressure to the molar heat at constant volume for a noble gas? Correct Answer 1.67

All noble gases are monoatomic in nature due to their stable outer electronic configuration. The ratio of their specific or molar heat at constant pressure to the specific or molar heat at constant volume is equal to 1.67, which is the same for all monoatomic gases.

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