Q.1.
Pick the correct combination for the correct information regarding bond energies.
Q.2.
The overall energy change in a chemcial reaction is -24kJ/mol. What does this tell us about the reaction?
Q.3.
Using the bond energies provided, calculate the energy change for this reaction. 2CH + O → 2CH OH
Q.4.
In the Haber process, nitrogen and hydrogen are reacted together to produce ammonia. Use the bond energies provided to calculate the overall energy change in the reaction.
Q.5.
Use the bond energies provided to calculate the energy change in the following reaction.
Q.6.
Use the bond energies provided to calculate the energy change in the following reaction.
Q.7.
Use the bond energies provided to calculate the amount of energy given out when propane is burnt.
Q.8.
If ΔH for a reaction is negative, what does this tell us about the reaction?
Q.9.
Use the bond energy values provided to calculate ΔH for the reaction of photosynthesis. 6CO + 6H O → C H O + 6O Hint: For glucose (cyclical) there are the following bonds formed: 7xC-H, 5xC-C, 7xC-O and 4xO-H.
Q.10.
What is the value for ΔH for respiration?