Q 2560523415.     From the following reactions at `298 K`,

Calculate the heat of formation of `CaC_2`(s) at
`298 K`.

BCECE 2013 Stage 1
A

`- 59.82 KJ mol^(-1)`

B

`+ 59.82 KJ mol^(-1)`

C

`- 190.22 KJ mol^(-1)`

D

`+ 190.22 KJ mol^(-1)`

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