2.
Heat evolved in the reaction, H2 + Cl2--- 2HCI is -182 kJ. Bond energies of H-H and
CL-Cl are 430 and 242 kJ/mol respectively. The H-Cl bond energy is:
(A) 245 kJ mol
(B) 427 kJ mol
(C) 336 kJ mol
(D) 154 kJ mol
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2.
Heat evolved in the reaction, H2 + Cl2--- 2HCI is -182 kJ. Bond energies of H-H and
CL-Cl are 430 and 242 kJ/mol respectively. The H-Cl bond energy is:
(A) 245 kJ mol
(B) 427 kJ mol
(C) 336 kJ mol
(D) 154 kJ mol
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Answer: potion d is correct
Explanation: cause u knw
Answer:
B) 427 kJ mol
Explanation:
H2+cl2 = 2Hcl + 182KJ
Bond energy of H−H−=430 kJ/mol
'" " " " cl - cl = 242 kJ/mol
consider the bond energyof HCL is x
⇒430+242 = 2x−182kj
⇒2x = 430+242+182
⇒x = 427kJ/mol
hope it helps...