Chemical Engineering Thermodynamics __________ does not change during phase transformation processes like sublimation, melting & vaporisation. Gibbs free energy All of these Internal energy Entropy Gibbs free energy All of these Internal energy Entropy ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A cyclic engine exchanges heat with two reservoirs maintained at 100 and 300°C respectively. The maximum work (in J) that can be obtained from 1000 J of heat extracted from the hot reservoir is 651 667 1000 349 651 667 1000 349 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Grams of butane (C₄H₁₀) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be 640 580 Data insufficient; can't be computed 1160 640 580 Data insufficient; can't be computed 1160 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The activity of an ideal gas is numerically __________ its pressure. Data insufficient, can't be predicted Less than More than Equal to Data insufficient, can't be predicted Less than More than Equal to ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is 3.389 1.572 1.9398 4.238 3.389 1.572 1.9398 4.238 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φi yi P = Yi xi fi° where, Φ is a vapor fugacity component, Yi is the liquid activity co-efficient and fi° is the fugacity of the pure component i. the Ki value (Yi = Ki xi) is therefore, in general a function of Temperature and pressure only Temperature, pressure and liquid composition xi only Temperature, pressure, liquid composition xi and vapour composition yi Temperature only Temperature and pressure only Temperature, pressure and liquid composition xi only Temperature, pressure, liquid composition xi and vapour composition yi Temperature only ANSWER DOWNLOAD EXAMIANS APP
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