Chemical Engineering Thermodynamics The freezing point of a liquid decreases when the pressure is increased, if the liquid __________ while freezing. Does not change in volume Expands Contracts Either A, B or C Does not change in volume Expands Contracts Either A, B or C ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics When pressure is applied on the system, ice ⟷ water, then Evaporation of water will take place Equilibrium can not be established More ice will be formed More water will be formed Evaporation of water will take place Equilibrium can not be established More ice will be formed More water will be formed ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance. Both B and C Heating Simultaneous pressure & temperature change Cooling Both B and C Heating Simultaneous pressure & temperature change Cooling ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Throttling process is a/an __________ process. Reversible and constant enthalpy Reversible and constant entropy Reversible and isothermal Irreversible and constant enthalpy Reversible and constant enthalpy Reversible and constant entropy Reversible and isothermal Irreversible and constant enthalpy ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Law of corresponding states says that The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories) The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature No gas can be liquified above the critical temperature, howsoever high the pressure may be , two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same The molar heat of energy of gas at constant volume should be nearly constant (about 3 calories) The surface of separation (i. e. the meniscus) between liquid and vapour phase disappears at the critical temperature No gas can be liquified above the critical temperature, howsoever high the pressure may be , two different gases behave similarly, if their reduced properties (i.e. P, V and T) are same ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics What is the value of ln y (where y = activity co-efficient) for ideal gases? Unity Infinity Zero Negative Unity Infinity Zero Negative ANSWER DOWNLOAD EXAMIANS APP
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