Question

What will be the enthalpy of formation of HBr if hypothetical bond energy of H-H, Br-Br and H-Br are 300 kJ/mole, 100kJ/mole and 250kJ/mole respectively? Reaction is as under H, +Br2 = 2HBr-------- ( A) -50 kJ/mole C) -100 kJ/mole B) +50 kJ/mole D) +1000 kJ/mole

Haal + chaal dono badhiya h​

Answer 1

Ignoling start

toi baat noi....Meko chab hi ignore Krte hai....

Bye....T_T

Answer 2

Answer:

Yaar itne hard kon puchte h , meko nahi aate(> ਊ <)