Chemical Engineering Thermodynamics - Study Mode

[#196] Forward reaction will be favoured for the exothermic reaction, represented by CO + H 2 O ⇋ CO 2 + H 2 , by
Correct Answer

(A) Low temperature and high pressure

Explanation

Solution: Here as the reaction is exothermic we can say by Le Chatelier's principle the decrease in temperature favours the forward reaction but since here the number of moles of both the reactants and products are same the pressure has no effect by Le Chatelier's principle.

[#197] The principle applied in liquefaction of gases is
Correct Answer

(C) Both A and B

Explanation

Solution: The liquefication involves both adiabatic expansion and joule-thomson effect of change in pressure as we do the observations at adiabatic conditions during the flow of gas through orifice (joule Thomson effect).

[#198] For a cyclic process, a fixed ratio between heat and work
Correct Answer

(A) Always exists

Explanation

Solution: For a cyclic process by first law of thermodynamics we can say $$delta Q - delta W = 0 Rightarrow frac{{delta Q}}{{delta W}} = 1$$ So, a fixed ratio always exists and we can also the difference between the heat and work is a point function.

[#199] The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called the __________ temperature.
Correct Answer

(B) Boyle

Explanation

Solution: Definition of Boyle temperature: the temperature at which a real gas obeys the ideal gas laws over wide range of pressures that particular temperature is called as Boyle temperature.

[#200] Chemical engineering thermodynamics is concerned with the __________ in/of chemical processes.
Correct Answer

(C) Energy transformation from one form to the another

Explanation

Solution: Chemical engineering thermodynamics is more concerned with the equilibrium states behavior. How much energy or mass is present at equilibrium like what is the equilibrium concentration, temperature etc. or we can say by basic thermodynamics the amount of energy transferred from one form to another by the use of first law of thermodynamics. But, basically the chemical engineering thermodynamics deals with equilibrium states.