Question

For the reaction:                                 2 C (s) + H2(g) →C2H2(g) a) Calculate the enthalp

For the reaction:

                                2 C (s) + H2(g) →C2H2(g)

a) Calculate the enthalpy of reaction (DHrxn) from the following reactions:

Reaction                                                             Δ Hrxn(kJ/mol)2

C2H2(g)+ 5 O2(g) → 4 CO2(g) + 2 H2O (l)              -2599.2

C (s) + O2(g) → CO2(g)                                            - 393.5

2 H2(g) + O2(g) → 2H2O (l)                                      -571.8

b) If the DS for the reaction is equal to 652 J/mol, and the reaction proceeds at 25°C, would you expect the reaction to be spontaneous?

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