Question: The rate constant of a chemical reaction decreases by decreasing the____________________?

• 1. Pressure
• 2. Concentration of reactants
• 3. Temperature
• 4. Duration of reaction

Question: For the chemical reaction P → Q, it is found that the rate of reaction doubles as the concentration of ‘P’ is doubled. If the reaction rate is proportional to Cp n, then what is the value of ‘n’ for this chemical reaction ?

• 1. 0
• 2. 1
• 3. 2
• 4. 3

Question: The fractional volume change of the system for the isothermal gas phase reaction, A → 3B, between no conversion and complete conversion is___________________?

• 1. 0.5
• 2. 1
• 3. 2
• 4. 3

Question: Second order consecutive irreversible reaction as shown in the bellow figure, were carried out in a constant volume isothermal batch reactor with different initial feed compositions. Reactor temperature was same in all the cases. In experiments where the

• 1. 1/4
• 2. 1/2
• 3. 2
• 4. 4

Question: The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is______________________?

• 1. 0
• 2. 1
• 3. 2
• 4. 3

Question: Transition state theory relates the above quantities as___________________?

• 1. k ∝ e-E/RT
• 2. k ∝ T.eE/RT
• 3. k ∝ √T
• 4. k ∝ T1.5

Question: In a semi-batch reactor __________________?

• 1. Mixing takes place in axial direction only
• 2. Velocity of reaction can be controlled
• 3. Condition similar to plug flow reactor exists
• 4. Residence time is constant

Question: Pure ethanol vapor is fed to a reactor packed with alumina catalyst, at the rate of 100 kmole / hr. The reactor products comprise: ethylene: 95 kmole / hr, water vapour: 97.5 k mole / hr and diethyl ether: 2.5 kmole/hr. The reactions occuring can be repre

• 1. 100
• 2. 97.5
• 3. 95
• 4. 2.5

Question: The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is________________________?

• 1. Backmix reactor
• 2. Plug flow reactor
• 3. Series of CSTR
• 4. PFR in series

Question: A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is – 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal to 50J/mole.K. The temperature rise after a c

• 1. 5°C
• 2. 10°C
• 3. 20°C
• 4. 100°C