8. Find ∆H◦ of the reaction 2C2H6(g) + 7O2(g) = 4CO2(g) + 6H2O(g), as it is...

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Question

8. Find ∆H◦ of the reaction 2C2H6(g) + 7O2(g) = 4CO2(g) + 6H2O(g), as it is written, given the following:

2C(s) + 3H2(g) = C2H6(g), ∆H◦ = −84.68 kJ,
2H2(g) + O2(g) = 2H2O(g), ∆H◦ = −483.6 kJ,

C(s) + O2(g) = CO2(g), ∆H◦ = −393.5 kJ.

(A) −3194 kJ

(B) −3109 kJ

(C) −2940 kJ

(D) −2855 kJ

(E) −1428 kJ

Answer 1

Answer #1

- 0 o 2015) + 314, 15) = {46(1) Alt = -84.68 ks 24, (s) + O2(g) = 24015) 14²–485.619 C(s) + q ) = coco) AH = -393.5K1 ② faon

Answer 2

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