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...
A storage tank at STP contains 21.6 kgkg of nitrogen
(N2)(N2).
a. What is the volume of the tank?
b.What is the pressure if an additional 32.7 kgkg of nitrogen is
added without changing the temperature?