The reaction is spontaneous in ___
The reaction is spontaneous in ___
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Related questions
For each reaction, calculate ?H?rxn, ?S?rxn, and ?Grxn at 39?C.
Part A
N2O4(g)?2NO2(g)
Express your answer using three significant figures.
| ||||
?H?rxn = | kJ |
Part B
N2O4(g)?2NO2(g)
Express your answer using three significant figures.
| ||||
?S?rxn = | J/K |
Part C
N2O4(g)?2NO2(g)
Express your answer using two significant figures.
| ||||
?G?rxn = | kJ |
Part D
State whether or not the reaction in part A 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 39?C?
Express your answer using three significant figures.
Express your answer using three significant figures.
The reaction is spontaneous. | |
The reaction can be made spontaneous by raising the temperature. | |
The reaction can be made spontaneous by lowering the temperature. | |
The reaction can not be spontaneous at any temperature. |
Part E
NH4Cl(s)?HCl(g)+NH3(g)
Express your answer using three significant figures.
| ||||
?H?rxn = | kJ |
Part F
NH4Cl(s)?HCl(g)+NH3(g)
Express your answer using three significant figures.
| ||||
?S?rxn = | J/K |
Part G
NH4Cl(s)?HCl(g)+NH3(g)
Express your answer using three significant figures.
| ||||
?G?rxn = | kJ |
Part H
State whether or not the reaction in part B 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 39?C?
State whether or not the reaction in part B 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 39?
The reaction is spontaneous. | |
The reaction can be made spontaneous by raising the temperature. | |
The reaction can be made spontaneous by lowering the temperature. | |
The reaction can not be spontaneous at any temperature. |
Part I
3H2(g)+Fe2O3(s)?2Fe(s)+3H2O(g)
Express your answer using three significant figures.
| ||||
?H?rxn = | kJ |
Part J
3H2(g)+Fe2O3(s)?2Fe(s)+3H2O(g)
Express your answer using three significant figures.
| ||||
?S?rxn = | J/K |
Part K
3H2(g)+Fe2O3(s)?2Fe(s)+3H2O(g)
Express your answer using three significant figures.
| ||||
?G?rxn = | kJ |
Part L
State whether or not the reaction in part C 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 39?C?
State whether or not the reaction in part C 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 39?
The reaction is spontaneous. | |
The reaction can be made spontaneous by raising the temperature. | |
The reaction can be made spontaneous by lowering the temperature. | |
The reaction can not be spontaneous at any temperature. |
Part M
N2(g)+3H2(g)?2NH3(g)
Express your answer using three significant figures.
| ||||
?H?rxn = | kJ |
Part N
N2(g)+3H2(g)?2NH3(g)
Express your answer using three significant figures.
| ||||
?S?rxn = | J/K |
Part O
N2(g)+3H2(g)?2NH3(g)
Express your answer using three significant figures.
| ||||
?G?rxn = | kJ |
Part P
State whether or not the reaction in part D 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 39?C?
State whether or not the reaction in part D 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 39?
The reaction is spontaneous. | |
The reaction can be made spontaneous by raising the temperature. | |
The reaction can be made spontaneous by lowering the temperature. | |
The reaction can not be spontaneous at any temperature. |
From the values of
Î
H and
Î
S, predict which of the following reactions would be spontaneous at
28
°
C:
reaction A:
Î
H = 10.5 kJ/mol,
Î
S = 30.0 J/K
·
mol;
spontaneous | |
nonspontaneous | |
impossible to tell |
reaction B:
Î
H = 1.8 kJ/mol,
Î
S = â113 J/K
·
mol,
spontaneous | |
nonspontaneous | |
impossible to tell |
If either of the reactions is nonspontaneous, can it(they) become spontaneous?
yes, reaction A can become spontaneous | |
yes, reaction B can become spontaneous | |
yes, both reactions can become spontaneous | |
no, neither reaction can become spontaneous |
If either of the reactions is nonspontaneous but can become spontaneous, at what temperature might it become spontaneous?