How LPG gets liquefied by elevating the pressure?If the
pressure is increased the temperature also increases,then
how LPG is in liquid form?
Answer / subhasish
We need to recall the joule thompson effect.
The Joule-Thomson coeffcient JT is defned as derivative of
the temperature T with respect to the pressure p at
constant enthalpy h.
coeff = (dT/dP) at const h
The curve is an inverted U shaped type and when the slope
i.e. co-eff is +ve then temp of gas increases with increase
in pressure and this is true for LPG also (Boiling point~-
38 degC at 1 atm pressure). It implies, LPG can be
liquefied by increasing pressure as the dew point also
increase. That's why even at room temp, by increasing
pressure LPG can be liquefied.
Is This Answer Correct ? | 9 Yes | 1 No |
Is there a handy way to determine if a horizontal pipe is running full if the flow rate is known?
What is a "saltation velocity"?
is petroleum a mixture of hydrocarbon?
What are the frequently asked technical questions in chemical engineering during PI?
can any chemical engineer become IES
What are the reasons of removal of particles from effluent gas?
What do we use carburizing/nitriding chemicals for?
on which website can i get previous GATE question papers?
pls send me model paper of NPCIL for executive trainee. and syllabus of executive trainee 2015.
What are advantages using hollow shaft impeller?
CHEMICAL MATERIAL BALANCE - EXAMPLE 2.5 : 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.
Oil and fat containing food items are flushed with nitrogen. Why?