January 2013 Chemistry Regents #52-54
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Base your answers to questions 52 to 54 on the
Base your answers to questions 52 through 54
on the information below.
The potential energy diagram and balanced
equation shown below represent a reaction between solid
carbon and hydrogen gas to produce 1 mole of C
52 State what interval 3 represents. [
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Interval 3 represents the
difference in potential energy between the
products and the reactants.
Interval 3 represents the heat
of reaction, 52.4 kJ.
53 Determine the net amount of energy
absorbed when 2.00 moles of C
Increase the temperature.
Increase the pressure.
Increase the concentration of H2(g).
Increase the surface area of the carbon.