How to calculate the expansion work done

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Calculate the expansion work done when 50g of water is electrolysed under constant pressure at 25C.

The correct answer is -10kJ but I get -6.88kJ (I used the w=(mass/molar mass)xRxT(in K) and I don't know what I am doing wrong.

Reference no: EM13499160

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How to calculate the expansion work done : Calculate the expansion work done when 50g of water is electrolysed under constant pressure at 25C.

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