A barometer has liquid-1 with density 1 Kg/m3 and height 10 cm below the outside level above that a liquid-2, if the gauge pressure of gas is 0.5 Pa, what is the pressure liquid-2?
1. 0.5 Pa
2.1 Pa
3.1.5 Pa
4. 2 Pa
A country is an example of which of the following?
1.Closed System
2.Open System
3. Isolated System
4.None of the mentioned
How is the boundary wall of a closed system?
1.Impermeable
2.Permeable
3.Rigid
4.None of the mentioned
The equation of material balance, (Final condition + Sum of outputs) is equal to which of the following?
1.Initial condition – Sum of inputs
2. Initial condition + Sum of inputs
3. Sum of inputs – Initial condition
4.None of the mentioned
The flow in rate of A and B are 4 mole/s and 8 mole/s respectively, which under goes reaction A + B -> 3C, what is the flow out rate of C?
1.4 mole/s
2.8 mole/s
3.12 mole/s
4.24 mole/s
There were 10 moles of a substance present initially in a system, 5 moles were added to it and a reaction occurred so that its moles are reduced by 20%, what are the final moles of a substance in the system?
1. 10
2.12
3.15
4.18
What is the accumulation in the system after 4 second if the out flow and in flow rates are 3 g/s and 8 g/s?
1.12 g
2. 20 g
3.32 g
4.40 g
10 moles of A were present in a system initially, and 10 moles are added to it, it follows the reaction 4A -> B, what are the number of moles of B produced?
1.5
2.10
3.15
4.20
10 moles of A were present in a system initially, and 10 moles of C are added to it, it follows the reaction 2A + C -> 5B, what is the number of moles of B produced?
1.5
2.10
3.25
4.50
10 moles of A were present in a system initially, and 12 moles of C are added to it, it undergoes the reaction 2A + 3C -> 2B, what are number of moles of B produced?
1. 4
2. 5
3.8
4.12
10 moles of A were present in a system initially, and 8 moles of C are added to it, it undergoes the reaction 5A + 3C -> 4B, what are number of moles of B produced?
1.4
2.6
3. 8
4.10
10 moles of O2 is added to 10 moles of H2, how many moles of H2O will it produce?
1.5
2. 10
3.15
4.20
8 moles of A were present in a system initially, and 24 moles of B are added to it, it undergoes the reaction 2A + 3B -> 4C + 5D, what are the number of moles of D produced?
1.10
2.20
3.30
4.40
A combustion reaction has reactants 1 mole of CxHy and 2 moles of O2 and products 1 mole of CO2 and 2 mole of H2O, what is x + y?
1.1
2.3
3.4
4. 5
A container has 10 grams of water 5 grams of water is added and 2 grams of water is taken out, what is the final amount of water?
1. 7 grams
2. 10 grams
3.13 grams
4.15 grams
A jar filled with water is an example of which of the following?
1.Closed System
2. Open System
3.Isolated System
4.None of the mentioned
A pressure cooker is an example of which of the following?
1.Closed System
2.Open System
3. Isolated System
4.None of the mentioned
A reaction has reactants 2 moles of NaOH and 1 mole of H2SO4, and products Na2SO4 and H2O, what are the total moles of products?
1.1
2.2
3.3
4. 4
A reaction is A + 2B -> 3C, if 2 moles of A and 4 moles of B entered the system, what are the number of moles of C formed?
1. 2
2.4
3. 6
4.8
A reactor has feed from 2 streams, one with rate 10 Kg/hr and other with 30 Kg/hr, and product side also has 2 streams one of which is at the rate of 15 Kg/hr, what is the rate of other product stream?
1.5 Kg/hr
2.15 Kg/hr
3. 25 Kg/hr
4. 35 Kg/hr
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?
1. 0.08
2. 0.16
3.0.24
4. 0.32
A reactor has feed rate of 10 Kg/ hr and 5 Kg/hr and product rate of 9 Kg/hr, what is the efficiency of the reactor?
1.10%
2.30%
3.60%
4. 100%
A reactor has two feed streams with the ratio of their rate as 1:9 and has O2 and O3 with the mass fraction of 0.6 and 0.4 in stream 1 and 0.2 and 0.8 in stream 2, what is the mass fraction of O2 in the product side?
1.0.24
2.0.48
3.0.72
4.0.96
A reactor with efficiency 50%, has the feed CO2 and SO2 with mass fraction 0.4 and 0.6 with the rate 10 Kg/hr, what is the rate of CO2 in product side?
1.0.5 Kg/hr
2. 1 Kg/hr
3.1.5 Kg/hr
4.2 Kg/hr
An egg is an example of which of the following?
1.Closed System
2.Open System
3. Isolated System
4.None of the mentioned
Desert Cooler is an example of which of the following?
1.Closed System
2.Open System
3. Isolated System
4.None of the mentioned
Feed of a reactor has 0.25 mass fraction of H2O and 0.75 mass fraction of CO2 with rate 4 g/hr, if the product rate is 20 g/hr what is the mass of CO2 in the product side?
1.3 grams
2.9 grams
3.15 grams
4.21 grams
Feed of a reactor has 0.75 mass fraction of O2 and some SO2, if the product rate is 1000 Kg/hr then what is the rate of SO2 in the feed?
1.100 Kg/hr
2.250 Kg/hr
3.750 Kg/hr
4.1000 Kg/hr
In a random reaction 2 mole of CH4 and 1 mole of C2H4 are reacted, and 1 mole of C3H8 and 1 mole of CxHy are produced, what is x*y?
1.2
2. 4
3.8
4.12
In a system if, Accumulation = Generation – Consumption, where both the terms are distinct and non-zero, then the system is which of the following?
1.Steady-state
2.Closed
3.Non-reactive
4.None of the mentioned
In a system if, Accumulation = Input – Output + Generation – Consumption, where all the four terms are distinct and non-zero, then the system is which of the following?
1. Steady-state
2.Closed
3.Non-reactive
4.None of the mentioned
In a system if, Accumulation = Input – Output, where both the terms are distinct and non-zero, then the system is which of the following?
1.Steady-state
2.Closed
3.Non-reactive
4.None of the mentioned
The flow in rate of A and B are 5 mole/s and 10 mole/s respectively, which under goes reaction A + 2B -> 3C, what is the flow out rate of C?
1.5 mole/s
2.10 mole/s
3. 15 mole/s
4. 20 mole/s
The flow in rate of A and B are 8 mole/s and 10 mole/s respectively, which under goes reaction 4A + 5B -> 3C, what is the flow out rate of C?
1.4 mole/s
2.6 mole/s
3.8 mole/s
4.10 mole/s
The flow in rate of A is 5 mole/s, it undergoes a reaction A -> 2B, what are the moles of B that comes out after 5 seconds?
1. 5
2. 10
3.25
4.50
The flow in rate of A is 8 mole/s, it undergoes a reaction 3A -> B, what are the moles of B that comes out after 6 seconds?
1.5
2.8
3.10
4.16
The general material balance equation for reactive system is Accumulation = Input + Generation – x, what is x?
1.Consumption – Output
2.Consumption + Output
3.Output – Consumption
4. none of the mentioned
The general material balance equation for reactive system is Accumulation = Input + Generation – x, what is x?
1.Consumption – Output
2.Consumption + Output
3.Output – Consumption
4. none of the mentioned
The human body is an example of which of the following?
1.Closed System
2.Open System
3. Isolated System
4.None of the mentioned
The rate of flow in stream with 20% CH4 and 80% H2O is 5 mole/hr, the contained was initially filled with 3 mole of H2O, what will be the percentage of CH4 in product stream?
1.5
2.12.5
3. 25
4.37.5
The rate of flow in stream with 40% O2 and 60% CO2 is 10 mole/hr, the contained was initially filled with 6 mole of O2, what will be the percentage of O2 in product stream?
1.12.5
2.25
3. 50
4.62.5
The rate of flow in stream with 50% O2 and 50% CO2 is 10 mole/hr, the contained was initially filled with 10 mole of O2, what will be the percentage of O2 in product stream?
1.25
2. 50
3.75
4.100
The rate of flow in stream with 75% O2 and 25% CO2 is 20 mole/hr, the contained was initially filled with 5 mole of O2, what will be the percentage of O2 in product stream?
1. 20
2.40
3.60
4.80
There were 15 moles of a substance present initially in a system, 25 moles were added to it and a reaction occurred so that its moles are reduced by 50%, what are the final moles of a substance in the system?
1.10
2.15
3.20
4.40
Waste water flowing with TSS concentration 40 mg/L at the rate of 10 Liter/min is discharged into the river if the river is flowing at the rate of 15 Liter/min, what is the concentration of TSS in the river?
1. 10 mg/L
2.30 mg/L
3.45 mg/L
4.60 mg/L
Water flowing with chlorine concentration 10 mg/L at the rate of 20 Liter/min, is discharged into a river if the concentration of chlorine in a river is 5 mg/L what is the flow rate of river?
1.10 Liter/min
2. 20 Liter/min
3.30 Liter/min
4.40 Liter/min
Water flowing with TSS at the rate of 40 Liter/min, is discharged into a river flowing at the rate of 20 Liter/min, if the concentration of TSS in the river is 5 mg/L, what is the concentration of TSS in water?
1.5 mg/L
2. 10 mg/L
3.15 mg/L
4. 20 mg/L
What is the accumulation in the system after 10 second if the out flow and in flow rates are 10 g/s and 15 g/s?
1.5 g
2.10 g
3.50 g
4.100 g
Which of the following does the concept of material balance based upon?
1. Conservation of mass
2.Conservation of energy
3.Conservation of momentum
4.Conservation of Volume
Which of the following is constant in a closed system?
1. Energy
2.Mass
3. Temperature
4.Momentum