AIEEE 2003 Chemistry Solved Paper

Section: Chemistry

Question : 19 of 76

Marks: +1, -0

If at 298K the bond energies of C−H,C−C,C=C and H−H bonds are respectively 414,347,615 and 435 kJ∕mol, the value of enthalpy change for the reaction
H2C=CH2(g)+H2(g)→H3C−CH3(g)‌ at ‌298K‌ will be ‌

[AIEEE 2003]

−250‌kJ
+125‌kJ
−125‌kJ
+250‌kJ

Validate

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