Chemical Engineering Thermodynamics MCQ Question with Answer

Question No : 29
The acentric factor of a materical, 'ω', is defined as ω = -log₁₀(P_r^sat)T_r^-1 = 0.7, where, P_r^sat = reduced vapor pressure, T_r = reduced temperature. The value of acentric factor is always

Question No : 30
Claude gas liquefaction process employs cooling

Question No : 31
High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process:

Question No : 32
When a system is in equilibrium for all possible processes, the differential or finite change of entropy is

Question No : 33
Normal temperature and pressure (N.T.P.) corresponds to

Question No : 34
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.

Question No : 35
Throttling process is a/an __________ process.