Thermodynamics

Section: Chemistry

Question : 31 of 40

Marks: +1, -0

Using the data provided, calculate the multiple bond energy (kJmol−1) of a C=C bond in C2H2. That energy is (take the bond energy of C–H bond as 350 kJmol−1).
2C(s)+H2(g) → C2H2 ΔH = 225 kJmol−1
2C (s) → C (g) ΔH = 1410 kJmol−1
H2(g) → 2H (g) ΔH = 330 kJmol−1

[JEE Adv 2012 P2]

1165 kJmol−1
837 kJmol−1
865 kJmol−1
815 kJmol−1

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