For each of the following reactions, calculate ÎHârxn, ÎSârxn, and ÎGârxn at 25 âC. State whether or not the reaction is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 25 âC?
Part A
2CH4(g)âC2H6(g)+H2(g)
Express your answer to one decimal place.
ÎHârxn = kJ
Part B
Calculate ÎSârxn at 25 âC.
Express your answer to one decimal place.
ÎSârxn = J/K
Part D
2NH3(g)âN2H4(g)+H2(g)
Express your answer to one decimal place.
ÎHârxn = kJ
Part E
Calculate ÎSârxn at 25 âC.
Express your answer to one decimal place.
ÎSârxn = J/K
Part G
N2(g)+O2(g)â2NO(g)
Express your answer using three significant figures.
ÎHârxn = kJ
Part H
Calculate ÎSârxn at 25 âC.
Express your answer to one decimal place.
ÎSârxn = J/K
Part J
2KClO3(s)â2KCl(s)+3O2(g)
Express your answer to one decimal place.
ÎHârxn = kJ
Part K
Calculate ÎSârxn at 25 âC.
Express your answer to one decimal place.
ÎSârxn = J/K
For each of the following reactions, calculate ÎHârxn, ÎSârxn, and ÎGârxn at 25 âC. State whether or not the reaction is spontaneous. If the reaction is not spontaneous, would a change in temperature make it spontaneous? If so, should the temperature be raised or lowered from 25 âC?
Part A
2CH4(g)âC2H6(g)+H2(g)
Express your answer to one decimal place.
| ||||
ÎHârxn = | kJ |
Part B
Calculate ÎSârxn at 25 âC.
Express your answer to one decimal place.
| ||||
ÎSârxn = | J/K |
Part D
2NH3(g)âN2H4(g)+H2(g)
Express your answer to one decimal place.
| ||||
ÎHârxn = | kJ |
Part E
Calculate ÎSârxn at 25 âC.
Express your answer to one decimal place.
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ÎSârxn = | J/K |
Part G
N2(g)+O2(g)â2NO(g)
Express your answer using three significant figures.
| ||||
ÎHârxn = | kJ |
Part H
Calculate ÎSârxn at 25 âC.
Express your answer to one decimal place.
| ||||
ÎSârxn = | J/K |
Part J
2KClO3(s)â2KCl(s)+3O2(g)
Express your answer to one decimal place.
| ||||
ÎHârxn = | kJ |
Part K
Calculate ÎSârxn at 25 âC.
Express your answer to one decimal place.
ÎSârxn = | J/K |