Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
junior college 2 | H1 Maths
No Answers Yet
Help Varsha! Anyone can contribute an answer, even non-tutors.
Hi how do you find this answer? I got 406 kj mol^-1 which is wrong. Help is much appreciated! Thanks:)
SO2 + ½O2 → SO3
Enthalpy change
B.E (reactants) - B.E (products)
= 2 x B.E (S=O, for SO2) + ½B.E (O=O) - 3 x B.E (S=O, for SO3)
-196 = 2 x 534 + ½ x 496 - 3 x B.E (S=O, for SO3)