Chemical Engineering Thermodynamics Critical compressibility factor for all substances Are more or less constant (vary from 0.2 to 0.3) Vary as square of the absolute pressure Vary as square of the absolute temperature None of these Are more or less constant (vary from 0.2 to 0.3) Vary as square of the absolute pressure Vary as square of the absolute temperature None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In case of steady flow compression polytropic process (PVn = constant), the work done on air is the lowest, when N = 1.66 N = y = 1.4 N = 1 N = 0 N = 1.66 N = y = 1.4 N = 1 N = 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass? DQ = CvdT + PdV DE = Tds - PdV Tds = dE - PdV DQ = CpdT + Vdp DQ = CvdT + PdV DE = Tds - PdV Tds = dE - PdV DQ = CpdT + Vdp ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Heat is added at constant pressure in an ideal __________ cycle. Brayton Stirling Both B and C Rankine Brayton Stirling Both B and C Rankine ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible __________ process. Polytropic Isentropic Isometric Isobaric Polytropic Isentropic Isometric Isobaric ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an exothremic reaction Enthalpy change is zero Only internal energy change (ΔE) is negative Only enthalpy change (ΔH) is negative Both ΔH and ΔE are negative Enthalpy change is zero Only internal energy change (ΔE) is negative Only enthalpy change (ΔH) is negative Both ΔH and ΔE are negative ANSWER DOWNLOAD EXAMIANS APP
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