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the chemical composition of air

78% almost nitrogen 20% oxygen and other gases 1%app.among all 1% argon has comparetive higher molar mass so taking that only to get approx.result.taking 100 grm air no of mols

nitrogen 5.5 diatomic gamma 1.4

oxygen .625

argon .05 mono atmic gamma 1.66

getting the ans by

(total mols of air-1)/x =summation (moles of gas y-1)/gomma of that gas

gas y is nitrogen oxygen & argon

specific heat at cnst pressure =gamma.8.314)/gamma -1

ans 15.35 j/mol

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