Question

How many calories are required to heat 40g of argon?

Answer 1

For a monoatomic gas like argon, CV = 3 cal/mol, CP = 5 cal/mol.

Molar heat capacity is the heat required to reaise the temperature of 1 mol of the gas by 1∘.

40 g of argon = 1 mole. Hence, heat required to raise the temperature from 40∘ to 100∘C at constant volume = 3×(100−40) = 180 cal

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Answer 2

Explanation:

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