Question

Tolong yaa:)
lagi butuh bngt . secepatnya klo bisa :)

Answer 1

1/2 N2 + 1/2 H2 → NH3

ΔH = [1/2 N≡N + 1/2 H-H] - (3 × N-H)
     = [(1/2 × 914) + (1/2 × 436)] - (3 × 391)
     = - 498