Wednesday
April 1, 2015

Homework Help: Chemistry

Posted by Angela on Tuesday, January 14, 2014 at 10:25pm.

When the oxide of generic metal M is heated at 25.0 C, only a negligible amount of M is produced.
O2M(s) ----> M(s) +O2(g) delta G= 290.5 Kj/mol

When this reaction is coupled to the conversion of graphite to carbon dioxide, it becomes spontaneous. What is the chemical equation of this coupled process? Show that the reaction is in equilibrium, include physical states, and represent graphite as C(s).

I got the coupled reaction is:
O2M(S)+C(S)>>M(S)+CO2(G)

ive been trying for the thermodynamic equillibrium constant which is the next part of the question:

I got ln(0.04193) and did e^-3.17 but its wrong. can anyone help?

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