

MCQOPTIONS
Saved Bookmarks
1. |
What is the heat of reaction for C2H4 + 3O2 -> 2CO2 + 2H2O, if heat of formation of C2H4, O2, CO2, and H2O are 10 J, 5 J, 6 J and 2 J respectively? |
A. | -4 J |
B. | -2 J |
C. | 0 |
D. | 4 J |
Answer» B. -2 J | |