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What would happen to the rate of a reaction with rate law rate kNO2H2 if the concentration of NO were double?
The rate would quadruple (increase by a factor of 4). This is because the rate depends on the SQUARE of the concentration of NO.
What 4 things can increase the rate of a chemical reaction?
Concentrations of reactants; concentrations of products; changes in temperature (usually higher temperatures favor faster reactions); catalyst; for some reactions, incident light; and, for reactions with a volume change, changes in pressure.
Can rate of reaction be negative?
As far as I know, No. A negative order means a higher concentration of the reactant having a lower reaction rate. For example: concentration of A reaction rate ---- 4 M .1 M/s 1 M .4 M/s ---- rate1/rate2=k(A1)n/k(A2)n k canceled (.1M/s)/(.4M/s)=(4M/1M)n 1/4=4n n=-1 but the reaction rate is usually proportional to the concentration of the reactant, which means reactants with a higher concentration have a greater reaction rate, in a few case, increase the concentration of reactant have little effect for the reaction rate. So, the order of the reaction is usually positive in a few case, it's close to 0. For more information about the relationship between reaction rate and the concentration of recants check out: http:/en.wikipedia.org/wiki/Reaction_rate http:/www.chemguide.co.uk/physical/basicrates/concentration.html
What are 4 things that affect the rate of a reaction?
1. The concentration of the substances. 2. The temperature. 3. The surface area of the particles. 4.The presence of a catalyst.
What are things that decrease a reaction rate?
Some factors are: low temperature, low pressure, low concentration of reactants, no stirring, coarse particles, etc.
What 4 factors increase a reaction rate?
4 factors that affect reaction rate are Temperature, Stirring, Concentration, and Pressure (only for gases).
What factors change the rate of chemical reaction?
Adding a catalyst to the process will make the chemical reaction go faster. Also, the temperation, concentration, state of matter and pressure will affect the rate of the chemical reaction.
What would happen to the rate of a reaction with rate law rate kNO2H2 if the concentration of NO were double?
The rate would quadruple (increase by a factor of 4). This is because the rate depends on the SQUARE of the concentration of NO.
4 What happens when you increase the surface area of reactants in a reaction?
In general increasing surface area will increase the rate of a reaction by allowing more sites for the reaction to take place. However it is hard to answer this question without knowing the specific material in question.
What other two ways of increasing rates of reaction?
There are 4 ways to speed up rate of reactionTemperature - if you increase this then ther will be more molecules with sufficient energy to reach 'over' the activation energy barrierConcentration - there are more molecules, so more collisionsCatalyst (or enzyme in bio-organic reactions) - this is a substance that speeds up the rate of reaction as it lowers the activation energy reaction 'barrier', meaning more collisions will be succesfulSurface Area - if one of the reactants is a solid then breaking it up it into smaller pieces will increase surface area at which more molecules can collide to react.It's all based on the collision theory.
What 4 things can increase the rate of a chemical reaction?
Concentrations of reactants; concentrations of products; changes in temperature (usually higher temperatures favor faster reactions); catalyst; for some reactions, incident light; and, for reactions with a volume change, changes in pressure.
Effect of ionic strength on rate of reaction?
The rate of reaction basically depends on the product of charges of ions present in a solution. Since the compounds dissociate in a solution and forms cations and anions, so their product matters a lot. If the product of charges is positive ( i.e. one ion is +1 and other is +4 = +4 ), then the rate of reaction will increase automatically, higher the product faster will be the rate. Similarly, if the product of ions present in a solution is negative ( i.e. one ion is +1 and other is -3 = -3) then the rate of reaction will decrease. For those reactions in which neutral species are present and for which the product of charges will be zero, there will be no effect on the rate of reaction.
What are 4 things that can affect the rate of a reaction?
1. Temperature: Depending on the temperature of the reactants, the reaction rate will differ. The higher the temperature (or the hotter the reactant is), the quicker the reaction will occur. The cooler the reactant is, the longer it will take for a reaction to take place. The heat causes the particles to move quickly, and due to the Collision Theory, which states that in order for a reaction to occur, molecules must collide, the particles will be more likely to bump into each other, and so the reaction will occur faster.2. Concentration: The higher the concentration of a reactant, the quicker the reaction will occur. This means that there are more particles of that particular substance, meaning it will collide more frequently into the particles of the other reactant. This increases the reactant rate because the more concentrated a reactant is, it means that the less space there is between the two reactants.3. Surface Area: Basically, the more particles that are exposed during the experiment, the faster the reaction will occur. The more the particles are exposed, the faster it is for the other reactant to collide into the particles, meaning the reaction rate will increase.4. Catalysts: Catalysts are substances that increase the rate of reaction by speeding up the reaction without being used up in the reaction. It does not affect the reactants in any other way than making them collide into each other more frequently, and it doesn't affect the product (or products) produced
What is the rate of natural increase in France?
The rate of natural increase in France is currently estimated to be around 0.4% per year. This rate represents the difference between the number of births and deaths in the country, excluding migration.
Increased temperature will increase what?
It depends on experiment or observations it may increase, 1- kinetic energy of molecules, 2- number of collisions among molecules per unit time, 3- solubility of a substance in water, 4- rate of evaporation of a liquid, 5-rate of a reaction and several other factors.
What is the percentage increase if the interest rate rises from 5 percent to 9 percent?
4%increase
What are four things that can be done to increase the speed at which reactions occur?
the following things are needed to for a reaction to go faster: 1.large surface area 2.more concentration 3.temperature 4.no.of collisions
