rapter To TRevieW ToplcS 1. Predict the Use the References to access important v

Question

rapter To TRevieW ToplcS 1. Predict the Use the References to access important values if needed for this question. 2. Standard Consider the reaction surroundi CH4(g) H20(g)CO(g) +3H2(g) 4. Suniver. Question Question Question 2req 2 14.7 J/K at 298.15 for which H_ 206.1 kJ and S K. (1) Calculate the entropy change of the UNIVERSE when 2.178 moles of CH4(g) react under standard conditions at 298.15 K. 2req 6. AG fro 2req AS 0 J/K universe- 67.6 7. AG: Pre 2req (2) Is this reaction reactant or product favored under standard conditions? 8. Calculat 2req

Explanation / Answer

Given

the reaction CH4 + H2O -------------> CO + 3H2

delta H = +206.1 KJ

delta S = 214.7 J/K

at 298.15

Thude Delta G0 of reaction = delta H0 - T x delta S0

= 206.1x1000 J - 298.15 x 214.7 J

=142087.195 J

We also know that

Delt G0 (system ) = - T x delta S total

Thus delta S total = -142087.195J/298.15 K

= -476.56 J/K

1) delta S total = -476.56J/K per one mole of CH4

Thus for 2.178 moles of CH4 the delta S = -2.178x 476.56

= - 1037.95 J/K

2) s the delta G  is positive and delta S total is negative , the reaction is reactant favored.

3) reactant favored

2)

Related Questions

Navigate

• Browse (All)
• Browse R
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.