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If 70 cal of heat is required to raise t...

If 70 cal of heat is required to raise the temperature of moles of an ideal gas at constant pressure from `30^(@)C` to `35^(@)C`, calculate (i) the work done by the gas (ii) the increases in internal energy of the gas and (iii) degrees of freedom of gas molecules. given `R =2 cal mol ^(-1) K^(-1)`

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