For which one of the following equations...

For which one of the following equations is `Delta_(r) H^(@)` equal to `Delta_(f) H^(@)` for the products (s)?

A

`2CO_((g)) + O_(2(g)) to 2CO_(2(g))`

B

`N_(2(g)) + O_(3(g)) to N_2 O_(3(g))`

C

`CH_(4(g)) + 2Cl_(2(g)) to CH_2 Cl_(2(l)) + 2HCl_((g))`

D

`Xe_((g)) + 2F_(2(g)) to XeF_(4(g))`

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The correct Answer is:

D

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