Chemical Engineering Thermodynamics When dilute aqueous solutions of two salts are mixed, the process is associated with No change in temperature Increase in temperature Decrease in temperature Change in temperature which is a function of composition No change in temperature Increase in temperature Decrease in temperature Change in temperature which is a function of composition ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics During Joule-Thomson expansion of gases Entropy remains constant None of these Temperature remains constant Enthalpy remains constant Entropy remains constant None of these Temperature remains constant Enthalpy remains constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The molar excess Gibbs free energy, gE, for a binary liquid mixture at T and P is given by, (gE/RT) = A . x₁. x₂, where A is a constant. The corresponding equation for ln y₁, where y₁ is the activity co-efficient of component 1, is Ax₁ Ax₂ Ax₁² A . x₂² Ax₁ Ax₂ Ax₁² A . x₂² ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system Its internal energy (U) decreases and its entropy (S) increases U and S both decreases U decreases but S is constant U is constant but S decreases Its internal energy (U) decreases and its entropy (S) increases U and S both decreases U decreases but S is constant U is constant but S decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Critical compressibility factor for all substances 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 Are more or less constant (vary from 0.2 to 0.3) Vary as square of the absolute pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In the reaction, C + O₂ → CO₂ ; ΔH = - 94 kcal. What is the heat content (enthalpy)of O₂? < - 94 kcal Zero > -94 kcal -94 kcal < - 94 kcal Zero > -94 kcal -94 kcal ANSWER DOWNLOAD EXAMIANS APP
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