1.

For which of the following reaction Delta H ne Delta E ?

Answer»

`H_(2(g)) + I_(2(g)) hArr 2HI_((g))`
`C_((s)) + O_(2(g)) hArr CO_(2(g))`
`N_(2(g)) + 3H_(2(g)) hArr 2NH_(3(g))`
`HCI_((AQ)) + NaOH_((aq)) hArr NaCI_((aq)) + H_(2) O_((l))`

Solution :`Delta n_((g))=2-4 = -2 ""[therefore Delta H ne Delta E]`


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