6. a) The temperature jump method is a way to study the kinetics of chemical rea
ID: 582951 • Letter: 6
Question
6. a) The temperature jump method is a way to study the kinetics of chemical reactions that are at equilibrium. If at a specific temperature, the equilibrium constant is far to the right, what will raising the temperature by 50 K do? (Choose 1, 2, or 3) 1. Shift it to the right 2. Shift it to the left 3. leave it unchanged b) If the equilibrium constant is about 1 at the starting temperature, what will raising the temperature by 50 K do? (Choose 1, 2, or 3) 1. Shift it to the right 2. Shift it to the left 3. leave it unchanged c) If at 298 K Keq =10, calculate the equilibrium constant at 310 K.Explanation / Answer
a)
Since the temperature increases so the energy of the reactants increases so the reaction shifts to the right side.
hence Answer 1 shifts to right
b)
Since the temperature increases so the energy of the reactants increases so the reaction shifts to the right side.
hence Answer 1 shifts to right
c)
log(K1/K2) = Ea/2.303*R(1/T2 - 1/T1)
log(10/K2) = Ea/2.303*8.314((1/310) - (1/298))
K2 = 10*e^(4.689*10^-4 * 2.303*Ea)
K2 = 10*e^(1.0798*10^-3Ea)
If we know the value of Ea = activation energy then we calculate K2 value
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