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For the given water gas reaction, CO + H2O → CO2 + H2 The feed consists of 18 moles of CO and 20 moles of steam. In the product, both CO2 and H2 are 15 moles. 6. Which is the limiting reactant in water gas reaction?
A
CO
B
H2O
C
CO2
D
None of the mentioned
Correct Answer:
CO
1 mole of CO2 = 1 moles of H2O.
For the given reaction CO2 + 4 H → CH2O + H2O In the feed there are 4 moles of CO2, 10 moles of H. If the reaction happens then 8. What is the number of moles of the extent reactant in the reaction after completion?
A
0
B
1
C
1.5
D
2.5
The reaction between ethylene and hydrogen bromide to form ethyl bromide is carried out in a continuous reactor. C2H4 + HBr = C2H5Br The product stream is analyzed and found to contain 51.7 mole% C2H5Br and 17.3% HBr. The feed to the reactor contains only ethylene and hydrogen bromide. Calculate the fractional conversion of the limiting reactant and the percentage by which the other reactant is in excess. If the molar flow rate of the feed stream is 165 mol/s, what is the extent of reaction?
A
56.2 mol/s
B
45.6 mol/s
C
55.6 mol/s
D
44.6 mol/s
A reactor supplied with CO2 and H2O, the product contains CO2, H2O and H2CO3, if the rate of products is 10 mole and percentage of CO2 in products is 20%, what is the feed rate of H2O?
A
2 mole
B
4 mole
C
8 mole
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it. The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore. The first fullscale, working steam powered tricycle was built by:
A
Verbiest
B
Cugnot
C
Trevithick
D
Niepce
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it. The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore. Cugnot built steam tractors for:
A
The Chinese Emperor
B
The French Army
C
The Jesuit mission
D
The French Conservatory
In a newly developed innovative idea brought up by CSIR in India, gas turbine exhaust gas are being utilized to convert feedwater into steam. Certain data of the experiment are as follows: mass flow rate of exhaust gas = 40 kg/hr, enthalpy of exhaust gas at the time of their exit from gas turbine is 600 kJ/kg, steam turbine output as measured by brake dynamometer = 60 hp-sec, thermal efficiency of steam power plant is 0.25, efficiency of exhaust gas in converting feedwater into steam is taken as 50%. Find the enthalpy of exhaust gas remaining after they generate steam from feedwater?
A
350.0KJ/Kg
B
241.2KJ/Kg
C
112.45KJ/Kg
D
512.56KJ/Kg
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is
A
0
B
1
C
2
D
3
A reactor has feed of two streams, stream 1 has CO2 and H2O with mass fraction of 0.4 and 0.6 and rate 10 kg/hr, and stream 2 has CO2 and H2O with mass fraction 0.1 and 0.9 and rate 40 Kg/hr, what the mass fraction of CO2 in the product stream?
A
0.08
B
0.16
C
0.24
Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it. The first working steam powered vehicle was designed and most likely built by Ferdinand Verbies, a Flemish member of a Jesuit mission in China around 1672. It was a 65 cm long scale model toy for the Chinese Emperor, that was unable to carry a driver or a passenger. It is not known if Verbiest's model was ever built. Nicolas- Joseph Cugnot is widely credited with building the first full scale, self propelled mechanical vehicle or automobile in about 1769; he also created a steam powered tricycle. He constructed two steam tractors for the French Army, one of which is preserved in the French National Conservatory of Arts and Crafts. His inventions were however handicapped by problems of water supply and maintaining steam pressure. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, believed by many to be the first demonstration of a steam powered road vehicle. It was unable to maintain sufficient steam pressure for long periods. Sentiment against steam powered road vehicles led to the Locomotive Acts of 1865. In 1807 Nicephore Niepce and his brother Claude probably created the world's first internal combustion engine which they called Pyreolophore. What is meant by "Sentiment" in the context of the given paragraph?
A
Depression
B
Fascination
C
Celebration
D
Resentment
A reactor supplied with CO2 and H2O, the product contains 40% CO2, 30% H2O and 30% H2CO3, what is the ratio of feed rate of CO2 and rate of products?
A
0.3
B
0.4
C
0.7