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1.

The plot of the function of equilibrium conversion to time for a bimolecular type reversible reaction is ____(a) Exponential(b) Linear(c) Logarithmic(d) QuadraticThe question was asked in semester exam.My question is taken from Temperature & Pressure Effects in chapter Complex Flow Patterns, Temperature and Pressure Effects of Chemical Reaction Engineering

Answer»

Correct option is (b) Linear

The EXPLANATION: The kinetics is REPRESENTED as, ln\((\frac{X_{Ae}-2(X_{Ae}-1)X_A}{X_{Ae}-X_A})\) = 2K1\((\frac{1}{X_{Ae}}-1)\)CA0t. This represents the equation of a straight line.
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2.

Which of the following represents second order bimolecular type reversible reaction?(a) A+B ↔ R+S(b) A ↔ B(c) A ↔ R+S(d) A+B ↔ RI had been asked this question during an interview.The above asked question is from Temperature & Pressure Effects in chapter Complex Flow Patterns, Temperature and Pressure Effects of Chemical Reaction Engineering

Answer» CORRECT OPTION is (a) A+B ↔ R+S

To ELABORATE: Bimolecular reaction involves 2 MOLECULES. Both reactants and products react simultaneously.
Discussion
3.

State true or false.It is possible to achieve a conversion greater than the equilibrium conversion.(a) It is possible to achieve a conversion greater than the equilibrium conversion.(b) True(c) FalseI had been asked this question in an internship interview.The question is from Temperature & Pressure Effects topic in portion Complex Flow Patterns, Temperature and Pressure Effects of Chemical Reaction Engineering

Answer»

The correct ANSWER is (B) True

Easiest explanation: Equilibrium conversion is the maximum value of conversion that can be ACHIEVED in any system. Conversion above the equilibrium value of conversion is not POSSIBLE.
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4.

State true or false.A reversible reaction is the one in which the reaction proceeds simultaneously in both directions.(a) A reversible reaction is the one in which the reaction proceeds simultaneously in both directions.(b) True(c) FalseI got this question in examination.Question is taken from Temperature & Pressure Effects in section Complex Flow Patterns, Temperature and Pressure Effects of Chemical Reaction Engineering

Answer»

The correct answer is (a) A reversible REACTION is the one in which the reaction proceeds simultaneously in both DIRECTIONS.

For explanation: A reversible reaction occurs simultaneously and independently in both directions. It is REPRESENTED in the GENERAL FORM A ↔ R.
Discussion
5.

The Le- Chatlier principle states that ____(a) No reaction is reversible(b) All reactions are reversible at high temperatures(c) A system experiencing disturbance shifts direction of equilibrium to nullify the change(d) A system experiencing disturbance does not shift direction of equilibrium to nullify the changeThe question was posed to me by my college professor while I was bunking the class.This intriguing question comes from Temperature & Pressure Effects in section Complex Flow Patterns, Temperature and Pressure Effects of Chemical Reaction Engineering

Answer» CORRECT option is (c) A system experiencing disturbance shifts direction of equilibrium to nullify the change

The BEST explanation: For a reversible reaction, any disturbance in the form of variation in TEMPERATURE, PRESSURE or concentration affects the equilibrium state. The equilibrium shifts in a direction such that the effect is COUNTERACTED.
Discussion