One mole of an ideal gas at 300 K is expanded isothermally from an initial volume of 1 litre to 10 litres. The ΔE for this process is

(R = 2 cal mol-1 K-1)

(a) 1381.1 cal

(b) zero

(c) 163.7 cal

(d) 9 L atm

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3 Answers

The correct option is: (b) zero

Explanation:

Change in internal energy depends upon temperature. At constant temperature, the internal energy of the gas remains constant, so ΔE = 0

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Correct option  (B) zero

Explanation:

For isothermal expansion of ideal gas, ΔE = 0

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Correct Answer is: (2) Zero 

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