Q.

For the formation of two moles water in its standard state from its constituent elements in their standard states, H-E is equal to

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a

-RT

b

-1.5RT

c

-0.5RT

d

-3RT

answer is D.

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Detailed Solution

2H2g+O2g 2H2Ol; ng=0-3=-3; H=E+ngRT; H-E=-3RT ;

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For the formation of two moles water in its standard state from its constituent elements in their standard states, ∆H-∆E is equal to