b. Assume AH and AS° are constant with respect to a change of temperature. Now calculate AG° at 350°C. AG = kJ c. Compare the two values of AG". What can you say about the spontaneity of the reaction at 25°C and 350°C? O The reaction will be spontaneous at 25°C, and it will be nonspontaneous at 350°C. The reaction will be nonspontaneous at 25°C, and.it will'be spontaneous at 350°C. OThe reaction will be spontaneous at both 25°C and 350°C. The reaction will be nonspontaneous at both 25°C and 350°C.

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7b. Please answer part B and C 

b. Assume AH® and AS are constant with respect to a change of temperature. Now calculate AG° at
350°C.
AG-
kJ
C. Compare the two values of AG". What can you say about the spontaneity of the reaction at 25°C and
350°C?
OThe reaction will be spontaneous at 25 C, and it will be nonspontaneous at 350°C.
The reaction will be nonspontaneous at 25 C, and.it will be spontaneous at 350°C.
OThe reaction will be spontaneous at both 25 C and 350°C.
OThe reaction will be nonspontaneous at both 25°C and 350°C.
Transcribed Image Text:b. Assume AH® and AS are constant with respect to a change of temperature. Now calculate AG° at 350°C. AG- kJ C. Compare the two values of AG". What can you say about the spontaneity of the reaction at 25°C and 350°C? OThe reaction will be spontaneous at 25 C, and it will be nonspontaneous at 350°C. The reaction will be nonspontaneous at 25 C, and.it will be spontaneous at 350°C. OThe reaction will be spontaneous at both 25 C and 350°C. OThe reaction will be nonspontaneous at both 25°C and 350°C.
Consider the reaction
CS2(9) + 4H2 (g) – CH4(g) + 2H,S(g)
a. Caleulate AH®, AS° ¸ and AG° at 25°C for this reaction.
AH; (kJ/mol) S° (Jmol-K)
CS2(g)
H, (g)
CH, (g)
116.9
237,9
130.6
=74.87
186.1
H2S(g)
-20.50
205.6
AH
kJ
AS =
JK
AG-
kJ
Transcribed Image Text:Consider the reaction CS2(9) + 4H2 (g) – CH4(g) + 2H,S(g) a. Caleulate AH®, AS° ¸ and AG° at 25°C for this reaction. AH; (kJ/mol) S° (Jmol-K) CS2(g) H, (g) CH, (g) 116.9 237,9 130.6 =74.87 186.1 H2S(g) -20.50 205.6 AH kJ AS = JK AG- kJ
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