1. What factors influence reaction rates? Check all that apply. volume 2. Which
ID: 536084 • Letter: 1
Question
1. What factors influence reaction rates?
Check all that apply.
volume
2. Which of the following scenarios would lead to the greatest increase in rate of reaction?
3. What is the equilibrium constant?
4. Consider the reaction below. Fe(s) + 2 HCl(aq) FeCl2(aq) + H2(g) Choose the correct expression for Keq.
PLEASE HELP.. THANKS!
time temperature concentration molar massvolume
2. Which of the following scenarios would lead to the greatest increase in rate of reaction?
increasing concentration and increasing temperature decreasing concentration and decreasing temperature increasing concentration and decreasing temperature decreasing concentration and increasing temperature3. What is the equilibrium constant?
The equilibrium constant is a measure of how much heat is emitted before the reactiom comes to the equilibrium. The equilibrium constant is a measure of how far a reaction goes toward completion. The equilibrium constant is a measure of how much of precipitation is formed. The equilibrium constant is a measure of how quickly the temperature of the reaction changes before the reaction comes to the equilibrium. (Fe) [HCijExplanation / Answer
1. What factors influence reaction rates?
Answer: The rate of a reaction is mainly effected by concentration of reactants, temperature
According to law of mass of action, the rate of reaction is directly proportional to product of concentration of reactants at any instant.
The rate of reaction also directly proportional to the temperature of the reaction due to increase in avergae kinetic energy of the molecules
2. Which of the following scenarios would lead to the greatest increase in rate of reaction?
increasing concentration and increasing temperature
According to law of mass of action, the rate of reaction is directly proportional to product of concentration of reactants at any instant.
The rate of reaction also directly proportional to the temperature of the reaction due to increase in avergae kinetic energy of the molecules
3. What is the equilibrium constant?
The equilibrium constant is a measure of how far a reaction goes toward completion.
It is a ratio of concentration of products to the concentration of the reactants, if the value of equilibrium constant is larger indicates a greater proportion of products and equilibrium is more towards right side and viceversa
4. Fe(s) + 2 HCl(aq) FeCl2(aq) + H2(g)
equilibrium constant,Kc = [products]/[Reactants]
Thus Kc = [FeCl2][H2]/[Fe][HCl]^2
but for solids, [Fe] = 1 thus, Kc = [FeCl2][H2]/[HCl]^2
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