Thermodynamics for Chemical Mcqs


Q.  Water on heating from 1 to 4°C___________________?

a. Contracts
b. Expands
c. Has same volume
d. May contract or expand


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  For a given substance at a specified temperature, activity is ______________ to fugacity?
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MCQs:  To obtain integrated form of Clausius-Clapeyron equation, ln (P2/P1) = (ΔHV/R) (1/T1 – 1/T2) from the exact Clapeyron equation, it is assumed that the____________________?
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MCQs:  Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is ___________________?
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MCQs:  Absorption/evolution of heat during conversion of a substance from one allotropic form to another is termed as the heat of _____________________?
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MCQs:  The heat capacities for the ideal gas state depend upon the_________________?
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MCQs:  Compound having large heat of formation is_____________________?
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MCQs:  The equation, Cp – Cv = R, is true for _______________ gas?
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MCQs:  What happens in a reversible adiabatic compression ?
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MCQs:  Maximum work that could be secured by expanding the gas over a given pressure range is the _____________ work?
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MCQs:  Which of the following is not affected by temperature changes ?
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MCQs:  Helmholtz free energy A. is defined as____________________?
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MCQs:  In an ideal refrigeration cycle, the change in internal energy of the fluid is_____________?
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MCQs:  Melting of ice is an example of an _____________ process?
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MCQs:  Which of the following equations is used for the prediction of activity co-efficient from experiments ?
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MCQs:  A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively) ?
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MCQs:  The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible _____________ process?
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MCQs:  Measurement of thermodynamic property of temperature is facilitated by ____________ law of thermodynamics?
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MCQs:  Refrigeration cycle_________________?
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MCQs:  In the reaction, C + O2 → CO2; ΔH = – 94 kcal. What is the heat content (enthalpy) of O2 ?
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MCQs:  On a P-V diagram of an ideal gas, suppose a reversible adiabatic line intersects a reversible isothermal line at point A. Then at a point A, the slope of the reversible adiabatic line (∂P/∂V)s and the slope of the reversible isothermal line (∂P/∂V)T are related as (where, y = Cp/Cv) ?
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