Answer / vasu

in design of heat transfer see the book name " heat
transfer . author DONALD O KERN.

an anybody provide me the HPCL apptitude papers?am having the test on this feb 27th 2008 so plz [Send This Question to Your Friend] please send me hpcl placement papers both technical and apptitude.. please

3 Answers   HPCL, NTPC,

---

Question 70 - According to Adolf Eugen Fick (1829 - 1901) : rate of diffusion v increases with less wall thickness t, increased area A and decreased molecular weight of a fluid M. The diffusion constant D decreased with increasing M. (a) By assuming v, t, dP, A, M and D changes proportionally of each other, find the equation of v as a function of t, dP, A and D. (b) The ratio of self diffusion constant D, at T = 273 K and P = 0.1 MPa, for gases B and C are 1.604 : 0.155. If only 2 gases exist in such a system : hydrogen and nitrogen, find the type of gas for B and C with reference to their molecular weights M. (c) By using the equation of kinetic energy 0.5 MV = constant where V = square of v, find the ratio of V for B and V for C, or V(B) / V(C), as a function of M(B) and M(C), where M(B) is molecular weight of B and M(C) the molecular weight of C : Graham's Law of Diffusion.

1 Answers  

---

In a Furnace arch pressure is more than Hearth pressure,then how flue gas travels to stack

0 Answers  

---

can hydrogen vent to atm openly from cylinder

1 Answers   Deepak Fertilisers,

---

Explain what is the method involved in analyzing powders for composition?

0 Answers  

---

Is there a quick rule-of-thumb to estimate a gas side heat-transfer rate inside the tubes of a shell and tube heat exchanger?

0 Answers  

---

why screw compressor use for ammonia compression?

0 Answers   Deepak Fertilisers,

---

I am pg student of chemical engg. I am intrested Heat Transfer Subject . I want information about advance heat transfer related PG PROJECT

0 Answers  

---

If the refrigerator is left open in closed room, What will be the effect on room temp.?

2 Answers  

---

What is quicklime and what are the uses?

0 Answers  

---

What are some factors to consider when trying choosing between a dry screw compressor and an oil-flooded screw compressor?

0 Answers  

---

What are the various utilities of the process plant?

0 Answers  

---