Chemical Engineering Thermodynamics The expression for entropy change given by, ΔS = - nR ln (P₂/P₁), holds good for Cooling of a real gas Expansion of a real gas Reversible isothermal volume change Heating of an ideal gas Cooling of a real gas Expansion of a real gas Reversible isothermal volume change Heating of an ideal gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Pressure-enthalpy chart is useful in refrigeration. The change in internal energy of an ideal fluid used in ideal refrigeration cycle is Zero Positive Infinity Negative Zero Positive Infinity Negative ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The minimum number of phases that can exist in a system is 3 0 1 2 3 0 1 2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics If heat contents of CH₄, C₂H₄ and C₃H₈ are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH₄(g) + C₂H₄(g) ⇋ C₃H₈(g) will be __________ Kcal. -55.2 55.2 -30.2 -19.4 -55.2 55.2 -30.2 -19.4 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process. Isentropic Isothermal Isobaric Isometric Isentropic Isothermal Isobaric Isometric ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is not a reversible process ? Atmospheric pressure vaporisation of water at 100°C Solution of NaCl in water at 50°C None of these Expansion of an ideal gas against constant pressure Atmospheric pressure vaporisation of water at 100°C Solution of NaCl in water at 50°C None of these Expansion of an ideal gas against constant pressure ANSWER DOWNLOAD EXAMIANS APP
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