Answer / dhaval modh

unit operation means the operation in which only physical
change occur not chemical.ex.fluid operation,mechanical
operation,heat tranfer operation, mass tranfer
operation.ie.distillation,drying,adsorption etc......

Answer / darshan jagatap

MAIN CHARACTERISTICS OF UNIT OPERATIONS IS THERE IS ONLY
PHYSICAL CHANGE (PHASE CHANGE) AND NO REACTIONS

CHARACTERISTICS:

PHASE CHANGE IS TOBE OBTAINED BY MAINTAING THE PARAMETERS
SUCH AS TEMP, PRESSURE, FLOW, LEVEL ETC

Answer / alok kumar

basically fluid machanics ,heat transfer operation operation
,mass transfer comes in catagory of unit operations.
the basic thing is that during 1 or more unit operations
there is no chemical composition change occur only physical
changes such as temp. etc. change.

Answer / ritam

The maint terms in unit operations are Distillation,
crystallization, leaching, and drying etc.

Answer / praveen peda

main unit operations are DISTILLATION,
DRYING ,LEACHING,ABSORPTION, ADSORPTION,etc

Answer / anusha

the main terms of unit operations are-
drying
size reduction
distillation
evaporation
crystallisation

Answer / nimesh patel

Unit operatons means operation in which physical changes
takes place.
e.g. Drying, extraction

Answer / nisha sharma

basic laws, molecular units, mole fraction, gas laws,
primary and secondary quantities, dimensional formulas,
dimensions, dimensionless equations,dimensional
analysis,graphical integration, all expressions to express
concentration like molarity, molality,etc.

What is some good advice for specifying allowable pressure drops in shell and tube exchangers for heavy hydrocarbons?

0 Answers  

Explain how does a tank-blanketing valve operate?

0 Answers  

Question 111 - There are 6 spin orbitals in p subshell in a ground state carbon atom. Only 2 electrons fill the p subshell. Number of different ways for n electrons to occupy the k spin orbitals are k! / [ (n!) (k-n)! ]. Find the number of different configurations of electrons to occupy the p subshell in a carbon atom.

1 Answers  

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.10 : Let D be the random outcome of rolling a dice once. A new dice has values of D* = D - 3.5. There is a total of n rolls of a dice. (a) Find the variance for D* by using the formula 6 V = [ D* (D = 1) ] [ D* (D = 1) ] + [ D* (D = 2) ] [ D* (D = 2) ] + [ D* (D = 3) ] [ D* (D = 3) ] + [ D* (D = 4) ] [ D* (D = 4) ] + [ D* (D = 5) ] [ D* (D = 5) ] + [ D* (D = 6) ] [ D* (D = 6) ]. (b) Calculate the standard deviation of D* as a square root of V. (c) Another new dice has values of D** = kD*. (i) Find the value of k so that D** has a standard deviation of 1. (ii) Find the values of D** for each outcome of D = 1, 2, 3, 4, 5 and 6, when the standard deviation is 1. (iii) Given that the average score of a dice is 3.5, find the equivalent, new and improved model of a dice, Sn in term of n and D**. (iv) Find the expected value of D** as the average of D**.

1 Answers  

How are vessel lined with glass or how are they coated?

0 Answers  

What is the Import Procurement Cycle ? and what are the customization steps in SAP ?

0 Answers   Siemens,

What is the symbol of sodium?

0 Answers  

Why should a magnesium ribbon be cleaned before burning in air?

0 Answers  

Question 68 – Biochemical Oxygen Demand (BOD) could be calculated using the formula BOD = (DOi - DOf) (Vb / Vs) where Vb = Volume of bottle in ml, Vs = Volume of sample in ml, DOi = Initial dissolved oxygen in mg / L, DOf = Final dissolved oxygen in mg / L. (a) By using a bottle of Vb = 300 ml with sample Vs = 30 ml, find the BOD if DOi = 8.8 mg / L and DOf = 5.9 mg / L. (b) By using a bottle Vb = 600 mL with sample Vs = 100 mL, find the BOD if DOi = 8.8 mg / L and DOf = 4.2 mg / L. (c) Find the average BOD = [ Answer of (a) Answer of (b) ] / 2. (d) If the BOD-5 test for (a) - (c) is run on a secondary effluent using a nitrification inhibitor, find the nitrogenous BOD (NBOD) = TBOD - CBOD. Let TBOD = 45 mg / L and CBOD = Answer of (c).

1 Answers  

What type of flow measurement devices is best for slurries?

0 Answers  

which is the major cement producing state in western India ?

2 Answers   BNPM,

what is a pschycometric chart and how to use it?

1 Answers