Compound having large heat of formation is_____________________?
(A) More stable
(B) Less stable
(C) Not at all stable (like nascent O2)
(D) Either more or less stable; depends on the compound
Absorption/evolution of heat during conversion of a substance from one allotropic form to another is termed as the heat of _____________________?
(A) Sublimation
(B) Fusion
(C) Transition
(D) Vaporisation
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____________________?
(A) Volume of the liquid phase is negligible compared to that of vapour phase
(B) Vapour phase behaves as an ideal gas
(C) Heat of vaporisation is independent of temperature
(D) All A ,
For a given substance at a specified temperature, activity is ______________ to fugacity?
(A) Directly proportional
(B) Inversely proportional
(C) Equal
(D) None of these
Linde gas liquefaction process employs cooling ____________________?
(A) By throttling
(B) By expansion in an engine
(C) At constant pressure
(D) None of these
In the reaction, C + O2 → CO2; ΔH = – 94 kcal. What is the heat content (enthalpy) of O2 ?
(A) -94 kcal
(B) > -94 kcal
(C) < – 94 kcal
(D) Zero
Measurement of thermodynamic property of temperature is facilitated by ____________ law of thermodynamics?
(A) 1st
(B) Zeroth
(C) 3rd
(D) None of these
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?
(A) Isobaric
(B) Isothermal
(C) Adiabatic
(D) None of these
Which of the following equations is used for the prediction of activity co-efficient from experiments ?
(A) Van Laar equation
(B) Margules equation
(C) Wilson’s equation
(D) All A,
Melting of ice is an example of an _____________ process?
(A) Adiabatic
(B) Isothermal
(C) Isometric
(D) None of these