Two reactions are given below`:` (i) `H_(2)O(g)+(1)/(2)O_(2)(g) rarrH_(2)O(l)` (ii) `H_(2)(g)+(1)/(2)O_(2)(g) rarr H_(2)O(g)` Which one will have greater value of `DeltaH` and why ?

Two reactions are given below`:` (i) `H_(2)O(g)+(1)/(2)O_(2)(g) rarrH_

1.	Two reactions are given below`:` (i) `H_(2)O(g)+(1)/(2)O_(2)(g) rarrH_(2)O(l)` (ii) `H_(2)(g)+(1)/(2)O_(2)(g) rarr H_(2)O(g)` Which one will have greater value of `DeltaH` and why ?
Answer» Reaction(i) will have greater value of `DeltaH`because when `H_(2)O(g)` condenses to form`H_(2)O(l)` , some heatis evolved ( called heat of condensation).

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Two reactions are given below`:` (i) `H_(2)O(g)+(1)/(2)O_(2)(g) rarrH_(2)O(l)` (ii) `H_(2)(g)+(1)/(2)O_(2)(g) rarr H_(2)O(g)` Which one will have greater value of `DeltaH` and why ?

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