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If a mole of hydrogen molecule is heated...

If a mole of hydrogen molecule is heated to a high temperature then which of the following reactions take place ?

A

`H_(2(g)) + 436 "kj mol"^(-1) rarr H_((g)) + H_((g))`

B

`2H_(2(g)) + 820 "kj mol"^(-1) rarr 2H_(2(g))`

C

`H_(2(g)) + H_(2(g)) + 436 "kj mol"^(-1) rarr H^(+)_(aq) + H_(aq)^(-)`

D

`H_(2(g)) + 200 "kj mol"^(-1) rarr H_((g)) + H_((g))`

Text Solution

Verified by Experts

The correct Answer is:
A
The amount of energy required to break H - H bond of 1 mole of hydrogen is 436 kJ `mol^(-1)`.
`H_(2(g))+436 "kJ mol"^(-1)to H_((g))+H_((g))`
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