The following reaction are given : `CH_(4(g))+2O_(2(g))toCO_(2(g))+2H_(2)O(g),DeltaH=-x` `C_((s))+O_(2(g))toCO_(2(g)),2H_(2(g)),DeltaH=-y` `H_(2(g))+(1)/(2)O_(2(g))toH_(2)O_((g)),2H_(2(g)),DeltaH=-z` calculate the heat of formation of `CH_(4)`?A. x+y+zB. y+2z-xC. x-y-2zD. none of the above

The following reaction are given : `CH_(4(g))+2O_(2(g))toCO_(2(g))+2H_

1.	The following reaction are given : `CH_(4(g))+2O_(2(g))toCO_(2(g))+2H_(2)O(g),DeltaH=-x` `C_((s))+O_(2(g))toCO_(2(g)),2H_(2(g)),DeltaH=-y` `H_(2(g))+(1)/(2)O_(2(g))toH_(2)O_((g)),2H_(2(g)),DeltaH=-z` calculate the heat of formation of `CH_(4)`?A. x+y+zB. y+2z-xC. x-y-2zD. none of the above
Answer» Correct Answer - C `C(s)+2H_(2)(g)toCH_(4)(g),DeltaH_(f)(CH_(4)) DeltaH_(f)(CH_(4))=(2)+2xx(3),-(1)` `=-y+2(-2)-(-x)` `rArrx-y-2z`

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The following reaction are given : `CH_(4(g))+2O_(2(g))toCO_(2(g))+2H_(2)O(g),DeltaH=-x` `C_((s))+O_(2(g))toCO_(2(g)),2H_(2(g)),DeltaH=-y` `H_(2(g))+(1)/(2)O_(2(g))toH_(2)O_((g)),2H_(2(g)),DeltaH=-z` calculate the heat of formation of `CH_(4)`?A. x+y+zB. y+2z-xC. x-y-2zD. none of the above

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