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# chemical engineer

• ### chiller in refrigerators ?

why the chillers or ice makers in regrigerators are always at the top? is there any fundamentals of heat transfer linked with it???

• ### temperarure-viscosity-velocity relationship?

I would like to know that if a gas/liquid is flowing through a CS pipe having fixed parameters. Now if i start increasing the temperature of the fluid, what will happen to the viscosity and thereafter to the velocity of the fluid.

• ### question on thermodynamics???

the air from a glass tube is completely evacuated and the tip of the tube is fused and sealed. you are now asked to break the tip of the tube, wait a few seconds, and then dip the tube into a beaker contatinig water, keeping the tip just below the water surface. Do you expect the water to rise into the glass tube, or do you expect air bubbles to come out of the tube into the water? explain the basis of your expectations.

• ### modified problem in contraction mapping?

f T is a contraction mapping, how could i show that T^n (i.e. T raise to the power n) is also a contraction mapping??? for n>1, is inverse true? why?

• ### question on contraction mapping?

If T is a contraction mapping, how could i show that T^n (i.e. T raise to the power n) is also a contraction mapping???

• ### where I could find the answers to the problems of Advanced engineering Thermodynamics???

This book is writte by Adrian Bejan. If any body could provide the web link for that one.

• ### how could i solve this differential equation?

square (h) +[hsin(theta)* dh/d(theta)] =1

this can be read as : h square + h into sin theta * differential of h w.r.t. theta = 1

here h is function of theta

h= h(theta)

• ### given a vector space (column vector) of dimension 1 , how i can construct a vector space orthogonal to it?

and what is the dimension of that vector space?

• ### I am asking three different questions on mathematics.?

what is a one to one function?

what is an invertible matrix?

given the vector space of a matrix, how can we construct another vector space which is orthogonal to the former vector space?