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What are two major factors that change the rate of a reaction?
Temperature and concentration of reactants are two major factors that can change the rate of a chemical reaction. Higher temperatures typically increase the rate of reaction by providing more energy for molecules to react, while higher concentrations of reactants result in more collisions between molecules, increasing the likelihood of successful reactions.
How change will decrease the number of effective collisions during a chemical reaction?
An increase in temperature will lead to an increase in the kinetic energy of molecules, causing them to move faster and collide more frequently. This will result in more effective collisions during a chemical reaction.
What factors affect the rate of a chemical reaction?
Temperature of system (molecular vibrational speed), Pressure of system (proximity), Catalysts (lowers activation energy of reaction), Volume of vessel (related to pressure), and Concentration of reagents (more collisions).
Which pair of reactants will result in a spontaneous reaction at 25C?
A pair of reactants that will result in a spontaneous reaction at 25C is one where the Gibbs free energy change (G) is negative. This means that the products have lower energy than the reactants, driving the reaction forward.
What would happen to a weak acid dissociation if more reactants were added?
Concentration of products would increase in order to attain equilibrium in the system again.For example:H2CO3 --> H+ + HCO3-K= ([H+][žHCO3-])/([H2CO3])K is constant for this process, so if you increase the concentration of reactants (H2CO3), in order for K to stay the same, concentration of products (H+, HCO3-) would also have to increase.It's part of Le Chatelier's principle: "If a chemical system at equilibrium experiences a change in concentration, temperature, volume, or partial pressure, then the equilibrium shifts to counteract the imposed change and a new equilibrium is established."So, in your case, adding more reactant would cause equilibrium to shift to the right (toward products), and therefore, their concentration would increase so that new equilibrium could be established.
A factor which influences the reaction rate?
One factor that influences reaction rate is temperature. Generally, an increase in temperature leads to an increase in reaction rate as higher temperatures result in particles having more energy and colliding more frequently, leading to more successful collisions.
What would happen if NO were added to N2g O2 g 2NO g at equilibrium?
Adding NO to the system at equilibrium would increase the concentration of the NO product. According to Le Chatelier's principle, the system will counteract this change by producing more of the reactants, N2 and O2.
How the dimension of an object change as a result of a temperature change?
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TO INCrease the rate of a reaction why would you increase the concentration of the reactants?
For most reactions which involve liquids or gases, increasing the concentration of the reactants also increases the rate of reaction. This is because the number of effective collisions are also increased which speeds up the reaction.
What are the 6 factors that speed up rate of a reaction?
1 surface area 2 concentration of reactant 3 presence of a catalyst 4 temperature not sure about the last two... One other one is: pressure of gaseous reactants or products Not sure though??
How are kinetics and reaction rate are related?
Increasing the concentration of the reactants will increase the frequency of collisions between the two reactants. So this is collision theory again. You also need to discuss kinetic theory in an experiment where you vary the concentration. Although you keep the temperature constant, kinetic theory is relevant. This is because the molecules in the reaction mixture have a range of energy levels. When collisions occur, they do not always result in a reaction. If the two colliding molecules have sufficient energy they will react.
What are the reactants in this?
Reactants in an equation are the elements that are mixed together. The products are the end result of the reactants that are mixed together.
