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The standard enthalpy change for the fol...

The standard enthalpy change for the following reaction is 436.4 kJ :
`H_(2)(g)rarrH(g)+H(g)`
What is the `Delta_(f)H^(@)` of atomic hydrogen (H)?

A

872.8 kJ/mol

B

218.2 kJ/mol

C

`- 218.2` kJ/mol

D

`- 436.9` kJ/mol

Text Solution

Verified by Experts

The correct Answer is:
B
`(Delta_(f)H)=(436.4)/(2)=218.2 " kJ"//"mol"`
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