2 mol of an ideal gas expanded isothermally & reversibly from 1 litre to 10 litres at 300 K.
2 mol of an ideal gas expanded isothermally & reversibly from 1 litre to 10 litres at 300 K. What is the enthalpy change?
(A) 4.98 K J
(B) 11.47 K J
(C) -11.47 K J
(D) 0 K J
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Correct option (D) 0 K J
Explanation:
H = E + PV
and ΔH = ΔE + Δ(PV)
or ΔH = ΔE + nRΔT
ΔT = 0
ΔE = 0
∴ ΔH = 0
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