Question 4: Diketone, after heated, will absorb a certain amount of energy and turn to enol, leading to a mixture of ketone and enol in the solution. Using NMR, we can calculate at 300 K, the ketone accounts for 70% while the enol accounts for 30% in the mixture. Please calculate the amount of the energy the diketone has absorbed during the process. OH E R' R R R ketone enol