Mechanical Engineering Mcqs

Submitted By: Ali Uppal

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  • The rate of the heterogeneous catalytic reaction A(g) + B(g) → C(g) is given by -rA = k.KA.pA.PB/(1 + KA.PA + Kc.pc), where KA and Kc are the adsorption equilibrium constants. The rate controlling step for this reaction is_______________?
  • The rate equation for the reaction represented by as shown in the bellow figure, is given by – rx = K1 . Cx/(1 + K2 Cx). At high value of Cx (i.e.., K2Cx > > 1), the order of the reaction and the rate constant are respectively___________________?
  • The temperature dependence of reaction rate constant (K) by Arrhenius law is given by_______________?
  • In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for________________?
  • Half-life period for a first order reaction is _____________ the initial concentration of the reactant?

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