CIE Physical Chemistry Quizz 4 Welcome to your CIE Physical Chemistry Quizz 4 Both the position of equilibrium and the value of Kc or Kp will change if temperature is altered pressure is altered concentration is altered rate of reaction is altered A mixture with total pressure 2kPa, contains 0.2 mol of nitrigen and 0.6 mol oxygen. What is the partial pressure of nitrogen gas in the mixture? 0.5 kPa 1.5 kPa 0.75 kPa 0.25 kPa Which of the following do not affect the value of Kp?I. TemperatureII. PressureIII. Concentration II and III only III only II only I and III only What is affect of increasing Kp on equilibrium of a reaction? Product yield increase Product yield decrease Kp does not affect the equilibrium Activation energy decreases Rate of a reaction is not affected by change in concentration of a reactant X. What is order of the reaction with repect to X? Zero 1st 2nd order cannot be determined by given information A reaction is 1st order with repect to reactant X and 2nd order with respect to reactant Y. If concentration of X is doubled and concentration of Y is trippled by what factor has the rate increased? 18 times 6 times 12 times 8 times Reaction rate increases 9 times by trippling the concentration of reactant A. What is the order of the reaction with respect to A? 2nd 1st zero 3rd Area under a maxwell boltzman distribution represents: Total number of particles present Activation energy Mean energy of particles Reaction probability What change causes maxwell boltzman distribution curve to shift to right? Increasing temperature Increasing pressure Increasing concentration Decreasing temperature What is the effect of catalyst on activation energy? Decreases Increases Remains same May increase or decrease What is the effect of increasing surface area on the rate of a reaction? Increases Decreases Remains same Can increase or decrease Time is Up!