Thermodynamics for Chemical Mcqs


Q.  Equilibrium constant decreases as the temperature___________________?

a. Increases, for an exothermic reaction
b. Decreases, for an exothermic reaction
c. Increases, for an endothermic reaction
d. None of these


ANSWER: See Answer
 
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MCQs:  “Law of corresponding states” says that___________________?
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MCQs:  Which of the following liquid metals has the highest thermal conductivity ?
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MCQs:  Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is_______________?
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MCQs:  The expression, ΔG = nRT. ln(P2/P1), gives the free energy change______________?
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MCQs:  For any system, what is the minimum number of degrees of freedom ?
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MCQs:  The freezing point of a liquid decreases when the pressure is increased, if the liquid ____________ while freezing?
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MCQs:  The compressibility factor of a gas is given by (where, V1 = actual volume of the gas V2 = gas volume predicted by ideal gas law)____________________?
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MCQs:  In any spontaneous process, the ______________ free energy decreases ?
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MCQs:  At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is__________________?
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MCQs:  What is the value of Joule-Thomson co-efficient for an ideal gas ?
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