Chemical EquilibriumDynamic Equilibrium101Choose the best answerA chemical reaction is at equilibrium when:AAll reactants have been converted into productsBForward and backward reaction rates are equalCProduct formation has completely stoppedDReactant and product concentrations are equal Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemical Equilibrium#Equilibrium Constant102Choose the best answerQ.69 In exothermic reaction, by decreasing the temperature, equilibrium constant:ASameBSometimes decreases sometimes increasesCReaction moves backwardDIncreases Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc103Choose the best answerFor a reversible reaction, what happens when Qc < Kc?AShift in the forward directionBShift in the reverse directionCRemain unchangedDStop both reactions Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc104Choose the best answerHow does Qc differ from Kc?AQc uses equilibrium concentrations, whereas Kc uses initial concentrationsBQc uses concentrations at a given instant, whereas Kc uses equilibrium concentrationsCQc and Kc are always numerically equalDKc changes with concentration, whereas Qc remains constant Like 0 Discuss 0Share
Chemical EquilibriumEffect of Temperature and Pressure on Equilibrium105Choose the best answerFor H₂X₂(g) + heat ⇌ 2HX(g), formation of HX is favoured by:AHigh pressure and low temperatureBHigh temperature and low pressureCLow temperature and low pressureDHigh temperature and high pressure Like 0 Discuss 0Share