The following reaction is spontaneous at room temperature. CH_4(g) + 2O_2(g) rig

Question

The following reaction is spontaneous at room temperature. CH_4(g) + 2O_2(g) rightarrow CO_2(g) + 2H_2 O(I) The reverse reaction Is spontaneous Is not spontaneous Is exothermic Has a larger equilibrium constant, K_p Which process is accompanied by a negative entropy change? stacking firewood dissolving instant coffee burning a log knocking over a brick wall Which of the species in the following electrochemical reaction is oxidized? Mg(s) + Cu^2+(aq) rightarrow Mg^2+ (aq) + Cu(s) Cu^2+ Cu(s) Mg(s) Mg^2+(aq)

Explanation / Answer

16.

the reverse should NOT be spontanous, since it is exaclty the reverse prcoess

17.

negative entropy --> lowering order

a) stacking firewood (more order)

all other increase chaos

18.

Mg sinc eit loses electrons to form Mg+2

choose C

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