Equilibrium 1
Quiz by Eric Williams
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10 questions
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- Q1What is chemical equilibrium?The point at which the concentration of reactants does not change with timeMagicThe point at which the concentrations of both products and reactants do not change with timeThe point at which the concentration of products does not change with time20s
- Q2The percent reaction of a given chemical reaction is calculated to be ~78%. This reaction would be classified as:Reactant FavouringQuantitativeProduct FavouringNo reaction20s
- Q3In an open system, we have the breakdown of CaCO3 into CaO and CO2 via heat. This reaction is quantitative.FalseTrue120s
- Q4The percent reaction of a given chemical reaction is calculated to be 0.1%. This reaction would be classified as:QuantitativeProduct FavouringReactant FavouringNo Reaction20s
- Q5The theoretical concentration of product of a reaction going to completion is 3.0 mol/L, but we only receive 2.3 mol/L. What is the percent reaction?50%76%77%82%45s
- Q6The equilibrium constant "K" is related to what ratio?Products to reactantsProducts to volumePressure to reactants30s
- Q7In the above reaction at equilibrium, we have the following concentrations: [A]=4.0 mol/L, [B]=1.5 mol/L, [C]=2.5 mol/L, [D]=3.5 mol/L. What is the equilibrium constant?3.3 x 10^-229.83.0x1030120s
- Q8We have a reaction that has reached equilibrium, and the concentration of the reactants and products are 2.6 mol/L and 0.4 mol/L respectively. What is the equilibrium constant of the reaction?7.00.20.156.545s
- Q9We have calculated the equilibrium constant of a reaction to be 2.6x10^4. We can say that this reaction is:QuantitativeSlowReactant favouringFast45s
- Q10The equilibrium law is expressed in what formula?K=[Products]/[Reactants]K=Temperature/Volumeq=mc(dT)K=PV45s