Consider the reaction CS2 (9) + 4H2 (g) = CH, (g) + 2H2S(g) a. Calculate AH°, AS°, and AG° at 25°C for this reaction. AH; (kJ/mol) S° (J/mol·K) CS2 (9) H2 (g) CH4 (g) H2 S(g) 116.9 237.9 130.6 -74.87 186.1 -20.50 205.6 ΔΗ' 232.77 kJ AS = -0.163 J/K AG" = -184.190 kJ b. Assume AH and AS" are constant with respect to a change of temperature. Now calculate 350°C. AG7 = -334.34 kJ

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Chapter1: Chemical Foundations
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Consider the reaction
CS2(9) + 4H2(g) CH4(g) + 2H2S(g)
అడ
a. Calculate AH°, AS° , and AG° at 25°C for this reaction.
AH; (kJ/mol) S° (J/mol·K)
CS2 (g)
H2 (g)
CH4 (g)
116.9
237.9
0.
130.6
-74.87
186.1
H2S(g)
-20.50
205.6
ΔΗ
232.77
kJ
AS" = -0.163
JK
AG = -184.190
kJ
b. Assume AH° and AS are constant with respect to a change of temperature. Now calculate
350°C.
AG
-334.34
Transcribed Image Text:Consider the reaction CS2(9) + 4H2(g) CH4(g) + 2H2S(g) అడ a. Calculate AH°, AS° , and AG° at 25°C for this reaction. AH; (kJ/mol) S° (J/mol·K) CS2 (g) H2 (g) CH4 (g) 116.9 237.9 0. 130.6 -74.87 186.1 H2S(g) -20.50 205.6 ΔΗ 232.77 kJ AS" = -0.163 JK AG = -184.190 kJ b. Assume AH° and AS are constant with respect to a change of temperature. Now calculate 350°C. AG -334.34
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