What is the total energy change for the following reaction: H2 + I2 -> 2HI?
Given:

H-H bond: 436 kJ/mol

I-I bond: 151 kJ/mol

H-I bond: 297 kJ/mol

A. +297 kJ/mol

B. +7 kJ/mol

C. -7 kJ/mol

D. -290 kJ/mol

the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

16

explanation:

the marks go by 4s