Answer / aish

urea is the main source of nitrogen to the soil,
but NPK fertilizer provide nitrogen, phosphorus as well as potassium.

Answer / guest

urea made up of n2, c, o2
NPK made up of N2, P, K

why distillation of water takes more time than toluene ,eventhough the later boiling point is more than water ?

3 Answers  

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Question 64 – According to a heuristic of chemical engineering plant design, assume a pressure difference dP = 4 psi for each 10-ft rise in elevation. A pump is needed to pump liquid from a storage tank at a lower elevation to a heating tank at a higher elevation with the elevation difference of 60 ft. (a) Find the pressure loss due to such elevation. (b) If the required minimum inlet pressure to the heating tank is 9 psi, with 1 control valve is installed between pump and heating tank, what is the dP minimum required for the control valve and the entrance to the heating tank when the heuristic mentions that at least 10 psi is required for the control valve? (c) The pressure at the inlet of the pump is 8 psi and the flowrate of the liquid produces pressure head of 50 psi. What is the total pressure produced by the pump? (d) Assume a pipeline dP of 2 psi / 100 ft for liquid flow in a pipe according to heuristic, what is the approximate maximum length of the pipe in ft that can be installed between the pump and the heating tank?

1 Answers  

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QUANTUM CHEMISTRY AND CHEMICAL ENGINEERING - EXAMPLE 31.4 : In a rigid rotor model in quantum chemistry, the moment of inertia I is given by an Equation E as I = Ma x La x La + Mc x Lc x Lc = m x L x L, where m = (Ma x Mc) / (Ma + Mc) and L = La + Lc, m is the reduced mass, Ma is the mass of a, Mc is the mass of c, La is the radius of a from point O, Lc is the radius of c from point O. Prove by simplest method that Equation E is wrong.

1 Answers  

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what is petrol density ? why ?

3 Answers   Reliance,

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Can asphalt be recycled to form a useful product?

0 Answers  

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how FOULING effectd the heat transfer rate

12 Answers   IOCL,

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What is screen analysis and what are its applications in the chemical industry?

0 Answers  

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What are the factors involved in designing kettle type reboiler?

0 Answers  

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What is condensate lift?

0 Answers  

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What is Pinch Technology?

6 Answers  

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What are the effects of oils on the properties of Polyolefins?

0 Answers   IOCL,

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Dear sir/madam I am in final year BE chemical engineering.Which companies i can apply .Please guide me.It is very helpful for me

0 Answers   TCS,

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