ISTE Catalyst Bootcamp OA

In a constant-pressure cake filtration with an incompressible cake layer, the volume of the filtrate (V) is measured as a function of time t. The plot of t/V versus V results in a straight line with an intercept of 10^4 s/m^3. The area of the filter is 0.05 m^2, the viscosity of the filtrate is 10^-3 Pa s, and the overall pressure drop across the filter is 200 kPa. The value of the filter-medium resistance (in m^-1 ) is:

• 10^9

• 10^11

• 10^12

• 10^10

Pure gas P is being absorbed into a liquid. The dissolved P undergoes an irreversible reaction in the liquid

film. The reaction is first order with respect to P. Which one of the following represents the concentration profile of P in the liquid film at steady state?

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• 4 x 10^-3

• 2 x 10^-3

• 3 x 10^-3

• 5 x 10^-3

The efficiencies of the engines C1 and C2 are 0.40 and 0.35 respectively. If the temperature of R1 is 800K, temperature of R3 is

• 300

• 312

• 412

• 400

• 42/1001

• 45/1001

• 240/1001

• 420/1001

• 0

• 3

• 14

• 13

For a reversible endothermic chemical reaction with constant heat of reaction over

   the operating temperature range, 𝐾 is the thermodynamic equilibrium constant.

   Which one of the following figures shows the CORRECT dependence of 𝐾 on

   temperature 𝑇?

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The number of transfer units (NTU) is:

• 0.5

• 1

• 1.5

• 2

Match the quantities in Group 1 with their units in Group 2 listed in the table below.

• P-II, Q-I, R-IV, S-III

• P-I, Q-II, R-III, S-IV

• P-III, Q-IV, R-II, S-I

• P-IV, Q-I, R-III, S-II

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