Chemical Engineering Answers

Draw the P&ID for rotary drier, wet scrubber and centrifugal pump

At the boiling point of a completely immiscible system of two liquids, the partial of pressure component in the vapour phase is.

a) Always less than its vapour pressure at that temperature

b) Always greater than its vapour pressure at that temperature.

c) Equal to its vapour pressure at that temperature

d) Dependent on nature and the amount of the other component in the liquid phase

3.Carbon monoxide (CO) is present in standard atmospheric air at a concentration of 50 ppm. Air density 1.185 kg/m and molecular weight is 28. Then what is the mass volume concentration (in micro grams /m') in the atmosphere? Explain the problem with step by step process

a) 12761

b) 79142 c) 28513 d) 57260

10.Which of the following is not a source correction method to control air

pollution?

a) Product storage

c) Equipment modification

b) Process changes

d) Raw material changes

17.The environmental lapse rate is 10°C/ 1000 meter, if the ground temperature is 50°C. What will be the temperature (°C) at 500 meter elevation? Explain briefly

a) 40 b) 45 c) 50

d) 55

2.------present in the molten sulfur deteriorates the platinum catalytic activity?

a) H₂SO4

c) Phosphorous

b) Arsenic

d) Coke

The general solution of y^2p-xyq=x(z-2y)is.

A)∮(x^2-y^2,y^2-xy)=o. B)∮(x^2-y^2,x^2-yz)=o.

C)∮(x^2-y^2,z^2-xy)=o.

D)∮(x^2-y^2,y^2-yz)=o.

`The residue at z=2 of the function 2z/(2-z)(z+2) is`.

A)-2. B)-1. C)1. D)2