Question

7Please help is due in 30 mins, will rate, Thank you!

Calculate AH° (in kJ) for the reaction 2 A + 4 B = 3 C given these AHfº values (all kJ/mol): A = (5.77x10^1), B = (1.3000x10^2), and C = (2.5100x10^2).

Answer 1

Solution The regetion is given: - 2A + 4 B 30 given, OHS for A= 5.77X10 KJ/mole 57.7. Kolme 1:1 102 KJ/mole e orf for B= 1.30 X. 10 Arif c= 130 KJ/mde 2.51 X 10² kJ/mole 251 KJ/mole this ure Now, we can equa tion:

Hacecidiron = EDHf paoducts Zorf zerela's A Hom= (3.518 (0] - [2.94€ (A) +4.5%() [3 X 251.00) – 2x 57-1)+(2x130] (115:4+ [ 520) Kom /mol 635.4 kJ/mol 753 K/mol AHA 117.5 Kg ki/mae Hence The value of AH2 = 117.6kg ht