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HardChemistry
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For the reaction, bond energies are given as under – (i) C—C, 346 kJ/mol (ii) C—H, 413 kJ/mol (iii) H—H, 437 kJ/mol and (iv) C=C, 611 kJ/mol What will be the value of ΔH at 25°C for the above reaction ?
A
−289 kJ mol⁻¹
B
−124 kJ mol⁻¹
C
+124 kJ mol⁻¹
D
+289 kJ mol⁻¹
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