For the Reaction
2C(s)+ 2H₂(g) $\rightarrow$ C₂H₄(g) $\Delta$ H_r ^$\omicron$ = +52 $\Delta$

question 56

Multiple Choice

For the reaction
2C(s) + 2H₂(g) $\rightarrow$ C₂H₄(g)
$\Delta$ H_r ^$\omicron$ = +52.3 kJ.mol^{-1 and $\Delta$ S_r $\omicron$ = -53.07 J.K-1.mol-1 at 298 K.
The reverse reaction will be spontaneous at}

• A) temperatures below 985 K.
• B) temperatures above 985 K.
• C) temperatures below 1015 K.
• D) all temperatures.
• E) no temperatures.

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