a mixture of 50%He and 50% n2 (by volume) at 300k in a 1L
cylinder is...
a mixture of 50%He and 50% n2 (by volume) at 300k in a 1L
cylinder is compressed in until the volume is reduced by a factor
of 4. the final temperature is 500k. find entropy generated
A gas mixture A composed of 50% ethylene (C2H4) and 50% nitrogen
(N2) can be prepared by blending gas mixture B (20% ethylene and
80% nitrogen by volume) and C (100% ethylene).
If 43.3 L (@98.7 atm and 21.1C) of C is used to make mixture A,
how many moles of B are needed? How many moles of A can be
obtained?
N2: Tc = 126.2 K, pc = 33.9 bar
C2H4: Tc = 282.8 K, pc = 51.1 bar...
A mixture of He and N2 gas is contained in a pipe at 298 K and 1
atm total pressure which is constant throughout. At one end of the
pipe at point 1 the partial pressure of He is 0.6 atm and at the
other end, 0.2 m away, the partial pressure is = 0.2 atm. 1.
Calculate the flux of He at steady state if DAB of the He-N2 system
is 0.684 x 10-4 m2 /s. R = 8.314...
1. A volume of 18.0 L contains a mixture of 0.250 mole N2 ,
0.250 mole O2 , and an unknown quantity of He . The temperature of
the mixture is 0 ∘C , and the total pressure is 1.00 atm . How many
grams of helium are present in the gas mixture?
2. A gas sample has a unknown pressure with a temperature of 51
∘C . The same gas has a pressure of 2.96 atm when the temperature...
A 2-Kg mixture of 20% N2 , 30% O2 and 50% CO2 by mass is heated
to 500 K with constant volume. Find The final pressure and the
total heat transfer needed.
A piston-cylinder has a volume of 1 ft3 and contains a substance
initially at 50 °F and 1 atm. The system is then heated until the
temperature becomes 300 °F. Determine the total heat added (Btu)
and final volume (ft3) assuming the substance is: a) water, b)
copper, c) neon, d) air.
How
to calculate density of mixture flowing through pipe, with 50%
volume of one fluid and 50% volume of another fluid?
Then for the mixture if temperature, internal diameter and
pressure gradient is given. 1.Calculate Reynolds number
2. Volumetric flow rate
3. Local velocity at a perpendicular distance of X from inner
wall of pipe.
If 500 mg of Fe3+ and 50 mg of OH- are
added to 1L of pure water, what will be the final equilibrium
concentration of Fe3+ and OH-. Assume water
does not dissociate.
Fe(OH)3 => Fe3++3OH-, pKs
=38.57, MWFe = 55.85 g/mol, MWOH = 17.01
g/mol
3. A graduated cylinder is filled with 50 mL of water . An aluminum
cylinder is dropped , the water rises to 58 mL . As you also add a
copper cylinder , the water rises to 64 mL . If the mass of the
copper cylinder is 40 grams , find the density of the copper
cylinder in g/mL.
a) 5 g/mL
b) 6.7 g/mL
c) 2.9 g/mL
d) 40 g/mL
3. A graduated cylinder is filled with 50...