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Solution of nitrogen in liquid iron may be assumed to follow Sievert's law. Nitrogen content of liquid iron. at 1873K in equilibrium with 1 atm pressure of nitrogen is measured as 0.044 (mass %). What will be the equilibrium nitrogen content in liquid iron (mass%), if nitrogen pressure is reduced to 0.25 atm?
A
0.011
B
0.022
C
0.088
D
0.176
Correct Answer:
0.022
A university library budget committee must reduce exactly five of eight areas of expenditure—I, J, K, L, M, N, O and P—in accordance with the following conditions: If both I and O are reduced, P is also reduced.
If L is reduced, neither N nor O is reduced.
If M is reduced, J is not reduced.
Of the three areas J, K, and N exactly two are reduced. Question : If both K and N are reduced, which one of the following is a pair of areas neither of which could be reduced?
A
I, L
B
J, L
C
J, M
D
I, J
In a wetted-wall tower, an air-H2S mixture is flowing by a film of water which is flowing as a thin film down a vertical plate. The H2S is being absorbed from the air to the water at a total pressure of 1.50 atm abs and 30oC. The value of kc of 9.567×10-4 m/s has been predicted for the gas-phase mass-transfer coefficient. At a given point the mole fraction of H2S in the liquid at the liquid-gas interface is 2.0×10-5 and pA of H2S in the gas is 0.05 atm. The Henry’s law equilibrium relation is pA(atm) = 609xA (mole fraction in liquid). Calculate the rate of absorption of H2S.
A
1.480×10-3 kmol/m2.s
B
1.486×10-3 kmol/m2.s
What is the monoisotopic and average mass of valine? Given data: Mass of the most abundant isotope of Carbon (C°)=12.0000, Mass of most abundant isotope of Hydrogen (H°)=1.0078, Mass of most abundant isotope of Oxygen (O°)=15.9949, Mass of most abundant isotope of Nitrogen (N°)=14.0031, The average mass of Carbon (C)=12.011, The average mass of Hydrogen (H)=1.008, The average mass of Oxygen (O)=15.999, The average mass of Nitrogen (N)=14.007.
A
99.068 and 99.2361
B
99.216 and 99.326
C
99.111 and 99.321
D
99.068 and 99.132
Consider the equilibrium A
(g)
+ B
(g)
= AB
(g)
. When the partial pressure of A is 10
-2
atm, the partial pressure of B is 10
-3
atm and the partial pressure of AB is 1 atm, the equilibrium constant 'K' is
A
10 atm<sup>-1</sup>
B
10<sup>5</sup> atm<sup>-1</sup>
C
10 (dimensionless)
D
10<sup>5</sup> (dimensionless)
Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10
-2
atm; the partial pressure of B is 10
-3
atm and the partial pressure of AB is 1 atm; the equilibrium constant K is
A
10 atm<sup>-1</sup>
B
10<sup>5</sup> atm<sup>-1</sup>
C
10 (dimensionless)
D
10<sup>5</sup> (dimensionless)
Solution X contains 7% (by weight) of liquid M and solution Y contains 14.5% (by weight) of liquid M. If 3 grams of solution X is mixed with 2 grams of solution Y, then liquid M accounts for what percent of the weight of the resulting solution?
A
6.09%
B
10%
C
10.75%
D
21.5%
What is the absolute pressure experienced by a pressure sensor, if the atmospheric pressure of a fluid is 2 atm, gauge pressure is 5 atm and differential pressure is 3 atm?
A
5 pascal
B
5 Atm
C
7 barye
D
7 Atm
What is the gauge pressure experienced by a pressure sensor, if the atmospheric pressure of a fluid is 1 atm, absolute pressure is 6 atm and differential pressure is 2 atm?
A
5 pascal
B
5 Atm
C
5 barye
D
1 Atm
Solution-1 containing 30% acetic acid and 20% nitrogen at the rate F combines with Solution-2 containing 20% acetic acid and 10% nitrogen at the rate D and Solution-3 containing 10% acetic acid and 30% nitrogen at the rate N the product formed contains 20% acetic acid at the rate P, what is the percentage of nitrogen in product?
A
10%
B
20%
C
30%
Solution-1 containing 30% acetic acid and 20% nitrogen at the rate F combines with Solution-2 containing 20% acetic acid and 10% nitrogen at the rate D and Solution-3 containing 10% acetic acid and 30% nitrogen at the rate N the product formed contains 20% acetic acid at the rate 10 Kg/min, what is the percentage of nitrogen in product?
A
10%
B
20%
C
30%