Answer / p. sreelakshmi

Silica gel is a granular, vitreous, porous form of silicon dioxide made synthetically from sodium silicate.

Answer / ganesh

Silica gel is Silicon di oxide

ENGINEERING PHYSICS - EXAMPLE 30.4 : (a) Time evolution in Heisenberg picture, according to Ehrenfest theorem is m (d / dt) < r > = < p >, where m = mass, r = position, p = momentum of a particle. If v = velocity, prove that m < v > = < p >. (b) Lande g-factor is given by Gj = Gl [ J (J + 1) - S (S + 1) + L (L + 1) ] / [ 2J (J + 1) ] + Gs [ J (J + 1) + S (S + 1) - L (L + 1) ] / [ 2J (J + 1) ]. If Gl = 1 and under approximation of Gs = 2, prove by calculation that Gj = (3/2) + [ S (S + 1) - L (L + 1) ] / [ 2J (J + 1) ].

1 Answers  

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Whether long question or short question I can expect in the interview at IOCL ?

0 Answers   IOCL,

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Explain some good strategies for curing tube vibration in shell and tube exchangers?

0 Answers  

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what is petrol density ? why ?

3 Answers   Reliance,

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What type of pump may be appropriate for a liquid near saturation, a low flow rate, and very limited npsha?

0 Answers  

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what is R1,R2,R3, R4........?

0 Answers   Okaya,

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What is the maximum steam pressure that can be generated?

0 Answers   CPCL,

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Define a barometric condenser?

0 Answers  

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Question 87 - According to Hardy-Weinberg Equation, p x p + 2 x p x q + q x q = 1 where p = dominant allele frequency and q = recessive allele frequency. Let p + q = 1. Fraction of population has 2 copies of the p gene = p x p. Fraction of population has 2 copies of the q gene = q x q. Fraction of population has a copy of p gene and a copy of q gene = 2 x p x q. In a small town, the allele frequency is q = 0.2 for a recessive gene, the delta-32 mutation, that gives human protection from HIV infection. (a) Find the allele frequency a dominant gene, p. (b) What percent of the population has at least a copy of the gene that cause the population either immune to HIV or less susceptible to the disease?

1 Answers  

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A 1.5 weight % aqueous salt solution is concentrated to 4 weight % in a single-effect evaporator. The feed rate to the evaporator is F = 7500 kg / h and the feed is at 85 degree Celsius. The evaporator operates at 1 bar. By assuming that only pure solvent of water exists in the form of vapor from the feed, calculate the flow rate of such vapor V.

1 Answers  

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What are some common problems associated with dense phase pneumatic conveying?

0 Answers  

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what is the role of id fan in a furnace?

3 Answers   Essar, JSW,

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