Answer / yash

reactor is the process where chemical changes take place
while all others are physical operations.

Answer / nagesh

Fluid flow: this is just an operation
Reactor: It is an equipment
Vaporization: Phase change operation from liquid to vapor
Evaporation: is a process where liquid will be evaporated
and dry solid will remain. here you can see mass transfer
(gain or loss)

Ans: Evaporation

Answer / harshal thakar

why pH ranges just between 0 to 14.and not 5 to 67,0 to 10,etc.....

Answer / ankur

the which increases the conversion with the help of phsical properties

Answer / prashant

Fluid flow is process where liquid,solid or gas is
transfer/flow from one point to another by any media (
unit peration ).

What is the maximum recommend pipe velocity for dry and wet gases?

0 Answers  

What is a good method of steam tracing large vessels?

0 Answers  

hai i A neelakanteswara rao ,selected for the interview on 15th july 2008. I completed my diploma in chemical engineering.let me know how to face the interview& the type of technical questions.

0 Answers   IOCL,

Question 35 – A mixture consists of benzene (B), toluene (T) and xylene (X). At a temperature of 353 K, the data of vapor pressures : B : 754.12, T : 289.71, X : 91.19. Unit is mm Hg. The pressure P is 0.5 atm. The value of k for each substance is k = (vapor pressure) / P. (a) Calculate k for B, T and X. Let L / V = 0.65. (b) By using the equation V = F / [ (L / V) + 1 ], find the value of V when F = 100, then what is the value of L?

1 Answers  

What is vapour flooding and liquid floodin in distillation?

0 Answers   Deepak Fertilisers,

COMPUTER PROGRAMMING FOR ENGINEERS - EXAMPLE 17.1 : By using Excel or other easiest programming package, explain how I, the integral of sin x dx from 0 to 3.142 could be approximated using random number. Find the exact value of I.

1 Answers  

what is the difference between material balance and mass balance

4 Answers  

How many pounds (lb) are available in 1 kilogram (kg), 1 metre (m) has how many feet (ft) and 1 meter (m) has how many inches (in)?

1 Answers  

What are some of the consequences of an undersized kettle type reboiler?

0 Answers  

Question 43 - In a non-dilute absorber, the inlet gas stream consists of 8 mol % carbon dioxide in nitrogen. By contact with room temperature water at atmospheric pressure, 65 % of the carbon dioxide from a gas stream has been removed. (a) Find the mole ratio of carbon dioxide and nitrogen gases at inlet and outlet gas streams. (b) The Henry’s Law provides y = 1640 x for carbon dioxide in water. Find the mole ratio when x = 0.0000427. Mole ratio is y / (1 - y) for y.

1 Answers  

A concentric, counter-current heat exchanger is used to cool lubricating oil. Water is used as the coolant. The mass flow rate of oil into the heat exchanger is 0.1 kg / s = FO. For oil, the inlet temperature TIO = 100 degree Celsius and the outlet temperature TOO = 55 degree Celsius. For water, the inlet temperature TIW = 35 degree Celsius and the outlet temperature TOW = 42 degree Celsius. What is the mass flow rate of water in kg / s, FW needed to maintain these operating conditions? Constant for heat capacity of oil is CO = 2131 J /(kg K) and for water is CW = 4178 J /(kg K). Use the equation (FO)(CO)(TIO – TOO) = (FW)(CW)(TOW – TIW).

1 Answers  

Question 66 – The drag coefficient Cd = 0.05 and lift coefficient Cl = 0.4 for a levelled flow aircraft are measured. The velocity of the aircraft is v = 150 ft / s with its weight W = 2677.5 pound-force. (a) Find the value of the lift of the aircraft, L, when it is also its weight. (b) The drag of the aircraft, D = Cd M, L = Cl M. Find the value of D. (c) The power required is P = Dv. If 1 pound-force x (ft / s) = 1.356 W, find the value of P in the unit of Watt or W.

1 Answers