Chemical Engineering Answers

6. What is the Dry adiabatic lapse rate value? a) 6.5°C b) 5°C. c)10°C

5)Define the terms primary and secondary air pollutant with the suitable examples?

4.For buoyant plumes the temperature difference equal to ........ a) 50 b) ≥ 50 c) ≤ 50 d) >50

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? ( a) 12761

b) 79142 c) 28513 d) 57260

2.Define the term Effective stack height?

1.What is the relation between biosphere and ecosystem?

6) Evaluate ∮c ze^{z)/(z-1)²(z²+4) dZ,Where C is |z-1|=1 by using Cauchy integral formula for derivatives.

5) Evaluate ∮c z³ Cos 1/z Where C is |z|=2.

4)Find the Laurent series expansion of the function 2z/ z²+2z-3 in the region 2<|z+1| <4.

3)Evaluate∫C z(ReZ)dz,Where C:z(t)=t, 0≤t≤1. ; 1+i(t-1), 1≤t≤2.