Two biochemical reactions have K1/K2 = 10 at temperature T1 = 298K. However, Reaction 1 has ΔH′(1) = 40000 J/mol and Reaction 2 has ΔH′(2) = 15000 J/mol. How much should the temperature should be raised or lowered in order to change the value K1/K2 to 0.3?