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Which of the following factors does not affect thr equilibrium of a chemical reaction when it is changed?
The nature of the reactants and products does not affect the equilibrium of a chemical reaction when it is changed. The equilibrium constant is a characteristic of a particular reaction at a given temperature and does not depend on the identities of the substances involved.
In a chemical change the identity of matter does not change?
No, the chemical nature of the reactants is changed.
The heat exchange in chemical reactions is due to a change in?
The chemical composition of reactants is changed.
What causes pressure changes of reactants to affect reaction rate?
The frequency of collisions is changed.
How the concentration effect the equilbrium?
The effect of the change in concentration on chemical equilibria can be predicted qualitatively by Le Chatelier's Principle. Consider the following reaction:Fe3+(aq)+SCN-(aq)Fe(SCN)2+(aq)If you add Fe3+(aq), that is an increase in the concentration of Fe3+(aq), and the equilibrium position shifts to the left (i.e. the product side). That is because the Le Chatelier's Principle states, if the reaction condition of an equilibrium system is changed, the equilibrium position will shift in a way to REDUCE the effect of the change. When the equilibrium position shifts to the left in the above system, that means the forward reaction rate increases (the backward reaction rate remains the same). More product is hence produced, in this case, Fe(SCN)2+(aq).Conversely, if you add Fe(SCN)2+(aq), the equilibrium position shifts to the right (i.e. the reactant side). This time the backward reaction rate increases while the forward reaction rate remains, hence more reactants (Fe3+(aq) and SCN-(aq)) are produced.The concentration effect on equilirium can sometimes be observed. In the above reaction, Fe3+(aq) is yellow, SCN-(aq) is colourless and Fe(SCN)2+(aq)is deep red. If the equilibrium position shifts to the left due to the concentration effect, more Fe(SCN)2+(aq) is produced and the colour of the reaction mixture becomes darker, due to the colour of Fe(SCN)2+(aq). Conversely, if the equilibrium position shifts to the right, the colour becomes paler.
Which of the following factors does not affect thr equilibrium of a chemical reaction when it is changed?
The nature of the reactants and products does not affect the equilibrium of a chemical reaction when it is changed. The equilibrium constant is a characteristic of a particular reaction at a given temperature and does not depend on the identities of the substances involved.
What happens when reactant is added to a system at equilibrium?
The equilibrium of the system will be upset.
What would happen to a system at equilibrium if the temperature changed?
If the temperature of a system at equilibrium changed, the equilibrium position would shift to counteract the change. If the temperature increased, the equilibrium would shift in the endothermic direction to absorb the excess heat. If the temperature decreased, the equilibrium would shift in the exothermic direction to release more heat.
What must happen for reactants to be changed into product?
in order for reactants to be changed into products, there needs to be a chemical change.
What is the difference between dissociation constant and equilibrium constant?
The dissociation constant describes the extent to which a compound breaks apart into its ions in a solution, specifically for weak acids or bases. The equilibrium constant, on the other hand, describes the ratio of product concentrations to reactant concentrations at equilibrium for a chemical reaction.
Is it true that an equilibrium constant is not changed by a change in pressure?
Yes, it is true that an equilibrium constant is not changed by a change in pressure.
Substances that are changed when they become involved in chemical reactions are?
The substances that are changed in a chemical reaction are known as reactants. These reactants undergo a chemical change or transformation to form new substances called products through the rearrangement of their atoms.
Substances that are changed when they become involved in chemical reactions are called?
Substances that are changed when they become involved in chemical reactions are called reactants. These reactants are changed into new substances that are called products.
What would happen to a a system at equilibrium if the temperature were changed?
the equilibrium constant would change
What would happen to a system a equilibrium if the temperature were changed?
the equilibrium constant would change
When does chemical equilibrium occur?
When reactants and the products that are also contributing to a chemical reaction show no sign over change over time, chemical equilibrium has taken place. Chemical equilibrium can be called a "steady state reaction". It must be noted, however, that just because nothing has changed, it doesn't necessarily indicate that the interaction has stopped.
Is it true In a chemical reaction reactants are changed into products?
True
