2s (s)+3o2 (g)→2so3 (g)2so2 (g)+o2 (g)→2so3 (g) has an enthalpy change of −790. 4 kj has an enthalpy change of −198. 2 kj what is the heat of formation of so2 in kilojoules? s (s)+o2 (g)→so2 (g).

At work claire has a deadline that is rapidly approaching. as she works, she finds that she is doing more work in a shorter amount of time than usual. she thinks mor quickly, and her senses and memory are sharper. what is responsible for claire working more effectively?