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As a 'Rule of Thumb'. thehigher the temperature, the faster the reaction. Hence the Rate Constant increases.
Conversely for decrease in temperature.
See the Arrhenius Equation.
k = Ae^(-Ea/RT).
Where
k = Rate constant
A = pre-exponential constant
'e' = the exponential number ( 2.7818...)
'-Ea- - negative activation energy
R = universal gas constant
T = absolute temperature (Kelvin)
The last three terms are raised to a power of 'e'.
What else can I help you with?
Is the rate constant dependent on temperature?
Yes, the rate constant of a reaction is typically dependent on temperature. As temperature increases, the rate constant usually increases as well. This relationship is described by the Arrhenius equation, which shows how the rate constant changes with temperature.
How does the rate constant change with temperature in a chemical reaction?
The rate constant of a chemical reaction generally increases with temperature. This is because higher temperatures provide more energy for molecules to react, leading to a faster reaction rate.
What is the expression for the rate of change of internal energy with respect to temperature at constant volume for an ideal gas, denoted as (du/dv)t?
The expression for the rate of change of internal energy with respect to temperature at constant volume for an ideal gas is denoted as (du/dv)t.
Does the rate constant change with concentration in a chemical reaction?
Yes, the rate constant can change with concentration in a chemical reaction.
On what does the rate constant depend?
The rate constant depends on factors such as temperature, concentration of reactants, and presence of a catalyst.
What is the formula for calculating the rate of change of temperature over time, given a constant rate of change of 3/2kt?
The formula for calculating the rate of change of temperature over time, given a constant rate of change of 3/2kt, is dT/dt 3/2k.
How do you differentiate between reaction rate and specific rate constant?
The reaction rate is the rate at which the moles of substance change that varies with both temperature and concentration of the reactants. The specific rate constant is a proportionality constant that will vary only with temperature.
Is the rate constant dependent on temperature?
Yes, the rate constant of a reaction is typically dependent on temperature. As temperature increases, the rate constant usually increases as well. This relationship is described by the Arrhenius equation, which shows how the rate constant changes with temperature.
How does the rate constant change with temperature in a chemical reaction?
The rate constant of a chemical reaction generally increases with temperature. This is because higher temperatures provide more energy for molecules to react, leading to a faster reaction rate.
What are the characteristics of rate of change?
It is usually a measure of how much one variable changes relative to changes in other variable(s). The pressure of an ideal gas depends on its temperature and volume. There are rates of change for pressurerelative to the temperature (with volume held constant),relative to the volume (with temperature held constant), anda multivariate rate of change when both can vary.Next, the rate of change need not be constant. For a body in accelerated motion, the rate of change of location (its velocity) varies with the acceleration. And that, in turn could vary with the force acting on the body.
How do you determine if a rate of change is constant?
You can determine if a rate of change is constant, by taking the instantaneous rate of change at multiple points - if they are all equal to each other, it can be assumed that the rate of change is constant. Alternatively, you can differentiate the function (if there is an associated function) - if this comes to a constant i.e. a number, then the rate of change is constant.
What is the expression for the rate of change of internal energy with respect to temperature at constant volume for an ideal gas, denoted as (du/dv)t?
The expression for the rate of change of internal energy with respect to temperature at constant volume for an ideal gas is denoted as (du/dv)t.
The rate of change of any nonlinear function is constant?
No. Only a linear function has a constant rate of change.No. Only a linear function has a constant rate of change.No. Only a linear function has a constant rate of change.No. Only a linear function has a constant rate of change.
How an increase in temperature change the rate constant of a chemical reaction?
An increase in temperature generally increases the rate constant of a chemical reaction due to more frequent and energetic collisions between molecules, leading to a higher probability of successful reactions. This is described by the Arrhenius equation, which states that the rate constant of a reaction increases exponentially with temperature.
What is a rate that doesnt change?
A constant rate!
Why is it necessary to specify the temperature when giving a value for k?
The rate constant, k, varies with temperature, so the temperature at which it has been determined must be given. In general a 10 oC temperature increase will double the rate of a chemical reaction.
What factors doesn't change the equilibrium constant of a reaction?
The equilibrium constant of a reaction is unaffected by changes in concentration, pressure, or volume, as these do not alter the intrinsic properties of the reaction at a given temperature. Additionally, the equilibrium constant remains constant regardless of the presence of catalysts, which only speed up the rate at which equilibrium is reached but do not change the position of equilibrium itself. However, the equilibrium constant is temperature-dependent; a change in temperature will alter its value.
