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06/10/2020 4:24 pm
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One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The value of ΔE for this process is (R = 2 cal mol-1 K-1)
(a) 163.7 cal
(b) zero
(c) 138.1 cal
(d) 9 litre atm
1 Answer
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06/10/2020 4:25 pm
(b) zero
Explanation:
Change in internal energy (ΔE) is zero during isothermal expansion of a gas.