Thermodynamics for Chemical Mcqs


Q.  The equation, PV = nRT, is best obeyed by gases at____________________?

a. Low pressure & high temperature
b. High pressure & low temperature
c. Low pressure & low temperature
d. None of these


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  “If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them”. This is ______________ law?
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MCQs:  A gas can be liquefied by pressure alone only, when its temperature is _____________ its critical temperature?
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MCQs:  Heat is added at constant temperature in an ideal ______________ cycle?
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MCQs:  Heat evolved/absorbed during conversion of a substance from one allotropic form to another is termed as the heat of______________?
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MCQs:  Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the_______________?
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MCQs:  Which of the following has the least thermal efficiency ?
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MCQs:  The point at which all the three (solid, liquid and gas) phases co-exist, is known as the ____________ point?
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MCQs:  Specific volume of an ideal gas is____________________?
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MCQs:  Dryness fraction of wet steam is defined as the ratio of mass of vapour in the mixture to the mass of mixture ______________ calorimeter is not used for measuring the dryness fraction of steam?
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MCQs:  The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of _____________ and COP are the same?
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MCQs:  The specific heat of saturated water vapour at 100°C is__________________?
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MCQs:  An isentropic process is carried out at constant____________________?
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MCQs:  Entropy is a measure of the _____________ of a system?
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MCQs:  If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as__________________?
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MCQs:  Consider the reaction, C + O2 ⇌ CO2; ΔH = – 94 kcal. What will be the value of ΔH for the reaction CO2 → C + O2 ?
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MCQs:  Gibbs free energy at constant pressure and temperature under equilibrium conditions is___________________?
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MCQs:  The ammonia synthesis reaction represented by N2 + 3H2 ⇌ 2NH3; ΔH = – 22.4 kcal, is__________________?
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MCQs:  The quantitative effect of temperature on chemical equilibrium is given by the____________________?
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MCQs:  Which is a state function ?
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MCQs:  Gibbs free energy of a pure fluid approaches _____________ as the pressure tends to zero at constant temperature?
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