In which of the following reactions heat liberated is known as standar

1.	In which of the following reactions heat liberated is known as standard heat of formation of CO_(2)?
Answer» `2CO _((G)) + O _(2 (g)) to 2 CO _(2 (g)) + 135 . 6 ` kcals `C _(("diamond")) + O _(2 (g)) to CO _(2 (g)) + 94.5 ` kcals `C _(("grphite")) + O _(2 (g)) to CO _(2 (g)) + 94.05` kcals `CH _(4 (g)) + 2 O _(2 (g)) to 2 CO _(2 (g)) + 2 H _(2 (g)) + 2 H_(2(L )) + 2128` ikcals Answer :C

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