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What is the effect on the rate of a chemical reaction when the concnetration of a reactant is decreased?
Decreasing the concentration of a reactant will typically decrease the rate of a chemical reaction, as there are fewer reactant molecules available to collide and form products. This is in line with the rate law, which often shows a direct relationship between reactant concentration and reaction rate.
What measures how quickly a reactant is disappearing or how quickly a product is appearing?
The rate of a chemical reaction measures how quickly a reactant is disappearing or a product is appearing. This rate can be determined by monitoring the change in concentration of reactants or products over time.
What would happen to the rate of a reaction with rate law rate kNO2H2 if the concentration of NO were halved?
In the given rate law, the rate of the reaction is dependent on the concentration of NO and possibly other reactants. If the concentration of NO is halved, the rate of the reaction would decrease proportionally, assuming that NO is a reactant in the rate law. Specifically, if the rate law is of the form rate = k[NO]^n[other species], the rate would be affected by the new concentration of NO, resulting in a reduced reaction rate. The exact impact on the rate would depend on the order of the reaction with respect to NO.
How does an increase in reactant concentration affect the rate of reaction?
It leads to more frequent collisions, which increase reaction rate.
In a first-order reaction how does the rate change if the concentration of the reactant decreases to one-third its original value?
In a first-order reaction, the rate of reaction is directly proportional to the concentration of the reactant. If the concentration decreases to one-third of its original value, the rate of the reaction will also decrease to one-third. This is because the rate equation for a first-order reaction can be expressed as ( \text{Rate} = k[A] ), where ( k ) is the rate constant and ([A]) is the concentration of the reactant. Therefore, a decrease in concentration leads to a proportional decrease in the reaction rate.
What happen to the reactant rate as a reactant gets used up?
The rate goes down.
If you double a concentration of a reactant then the rate of the reaction doubled The order with respect to the reactant is?
The reaction is first order with respect to the reactant. In a first-order reaction, the rate is directly proportional to the concentration of the reactant. Doubling the concentration of a reactant will result in a doubling of the reaction rate.
What is the effect on the rate of a chemical reaction when the concnetration of a reactant is decreased?
Decreasing the concentration of a reactant will typically decrease the rate of a chemical reaction, as there are fewer reactant molecules available to collide and form products. This is in line with the rate law, which often shows a direct relationship between reactant concentration and reaction rate.
What happens to the reaction rate as a reactant gets gets used up?
The rate goes down.
What equation would calculate the rate constant from initial concentration?
The formula is:k(T) = ([A][B])/r where:- [A] and [B] are the concentrations of reactants- r is the reaction rate
How do you work out the rate of reaction when your independent variable is pH and your timing in seconds?
It is irrelevant what the independent variable is, whenever you work out rate of reaction you also divide 1 by the time in seconds. For example if it took 100 seconds your rate would be 0.01s-1.
If the order of a chemical reaction with respect to one of its reactants is zero how does that reactant's concentration affect the rate of the chemical reaction?
If the order of a reactant is zero, its concentration will not affect the rate of the reaction. This means that changes in the concentration of the reactant will not change the rate at which the reaction proceeds. The rate of the reaction will only be influenced by the factors affecting the overall rate law of the reaction.
What is the rate equation if it is 3rd order in reactant A and 2nd order in reactant B?
rate=k[A]^3[B]^2 thats A cubed and B squared
What must be known for the rate constant to be calculated for the rate law?
The reaction rate at known reactant concentrations.
When the concentration of a reactant was 0.100 M the rate of the reaction was 8.42 X 106 M s-1 When the concentration of the reactant was doubled to 0.200 M the rate increased to 1.59 X 105 M s1 What?
The reaction is first order with respect to the reactant. The rate constant k can be determined by using the rate equation in the form rate = k [A]. By plugging in the values for rate and concentration at both conditions, you can solve for k. The rate constant k in this case would be 1.59 × 10^3 M^-1 s^-1.
How will decreasing the reactant concentration affect the rate of reaction?
Decreasing the reactant concentration will slow the rate of the reaction. If you use the idea of adding oxygen and hydrogen to make water and decease the amount of one, you will produce less water. It doesn't matter which reactant is less as there are just are not enough to go around.
What happens to the reaction rate as the reactants get used up in a reaction?
The rate of a reaction begins to decreases as reactant are used up
