Question

Plz zzz ans this question.. How to solve step by step​

Answer 1

Answer:

the change in enthalpy is +492kJ

Explanation:

the final equation is the sum of reverse of first and second

so the enthalpy of first equation will change its sign so it I'll be +822 KJ

now

as we know that change in enthalpy is

∆H = H2 - H1

so

∆H = 3 * (-110) + 822

∆H = -330 + 822

∆H = +492kJ/mol