Thermodynamics for Chemical Mcqs


Q.  If atmospheric temperature and dew point are nearly equal, then the relative humidity is_______________?

a. Zero
b. 50%
c. Almost 100%
d. unpredictable


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Number of phases in a colloidal system is_____________________?
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MCQs:  What happens in a reversible adiabatic expansion process ?
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MCQs:  The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is__________________?
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MCQs:   Entropy change of the reaction, H2O (liquid) → H2O (gas), is termed as the enthalpy of___________________?
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MCQs:  Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ______________ with the increase of reduced temperature?
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MCQs:  The principle applied in liquefaction of gases is_____________________?
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MCQs:  On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will____________________?
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MCQs:  _____________ law of thermodynamics ascertains the direction of a particular spontaneous process?
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MCQs:  Entropy change for an irreversible isolated system is__________________?
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MCQs:  The work done in an adiabatic change in a particular gas depends upon changes in the ______________ only?
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MCQs:  An ideal gas is taken around the cycle ABCA as shown in P-V diagram below: The work done by the gas during the cycle is equal to_________________?
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MCQs:  The efficiency of a Carnot heat engine operating between absolute temperatures T1 and T2 (when, T1 > T2) is given by (T1 – T2)/T1. The co-efficient of performance (C.O.P.) of a Carnot heat pump operating between T1 and T2 is given by__________________?
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MCQs:  In an irreversible process________________?
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MCQs:  When pressure is applied on the system, ice ↔ water, then_________________?
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MCQs:  For a constant pressure reversible process, the enthalpy change (ΔH) of the system is___________________?
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MCQs:  Work done is a____________________?
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MCQs:  Co-efficient of performance for a reversed Carnot cycle working between temperatures T1 and T2 (T1 > T2) is ___________________?
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MCQs:  After throttling, gas temperature___________________?
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MCQs:  If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will___________________?
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MCQs:  The thermodynamic law, PVy = constant, is not applicable in case of______________?
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