Question

Чему равен температурный коэффициент скорости реакции, если при увеличении температуры на 30°С скорость реакции возрастает в 27 раз?

Answer 1

V₁/V₂ = γ^Δt/10 
27 =  γ^30/10 =  γ³, тогда    γ = 3

Answer 2

Temperature Coefficient of Reaction Rate

The temperature coefficient of reaction rate is a measure of how the rate of a chemical reaction changes with temperature. It quantifies the relationship between temperature and reaction rate. The temperature coefficient is often denoted by the symbol "Q10" and is calculated using the formula:

Q10 = (Rate at T + 10°C) / (Rate at T)

where T is the initial temperature and Q10 is the temperature coefficient.

In the given question, it is stated that when the temperature increases by 30°C, the reaction rate increases by a factor of 27. To find the temperature coefficient, we can use the formula mentioned above.

Let's assume the initial rate of the reaction at temperature T is R. According to the given information, when the temperature increases by 30°C, the rate of the reaction becomes 27R.

Using the formula for the temperature coefficient, we have:

Q10 = (Rate at T + 10°C) / (Rate at T) = (27R) / R = 27

Therefore, the temperature coefficient of the reaction rate in this case is 27.

Please note that the specific reaction and units are not provided in the question, so the temperature coefficient is given as a dimensionless value.