MCQOPTIONS
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MCQOPTIONS
| 1. |
What will be the change in energy for the following reaction?H2(g)+F2(g) 2HF |
| A. | nGiven: To break one mole of H<sub>2</sub>, energy absorbed is 436 kJ. To break one mole of F<sub>2</sub>, energy absorbed is 158 kJ. To form one moles of HF, energy released is 568 kJ. |
| B. | 542KJ |
| C. | -542KJ |
| D. | 26 KJ |
| E. | -26 KJ |
| Answer» C. -542KJ | |