# Engineering/Chemical Engineering Mcq Question Set 15 Sample Test,Sample questions

## Question: ` 5 J of heat is supplied to a steady state system, what is the work done by the system?`

1. â€“ 5 J

2.5 J

3.0

4.10 J

Posted Date:-2022-03-15 18:28:06

## Question: ` 5 Kg of steam is enclosed in a container with internal energy = 10 J/Kg, then 25 J of heat is supplied to the system, what is the final internal energy?`

1. 5 J/Kg

2.10 J/Kg

3.15 J/Kg

4.20 J/Kg

Posted Date:-2022-03-15 18:15:46

## Question: ` CP-T curve covers 10 J from 2oC to 10oC, what is the enthalpy change?`

1.10 J

2.20 J

3. 80 J

4.100 J

Posted Date:-2022-03-15 18:25:37

## Question: ` CP-T curve of CO2 forms a rectangle of height 10 J/oC from 5oC to 10oC?`

1.10 J

2.50 J

3.100 J

4.250 J

Posted Date:-2022-03-15 18:25:58

## Question: ` Enthalpy of reactants is 30 J/Kg and enthalpy of products is 10 J/Kg, what is the heat of reaction?`

1. -20 J/Kg

2.20 J/Kg

3. -10 J/Kg

4.10 J/Kg

Posted Date:-2022-03-15 18:41:42

## Question: ` For an ideal gas isobaric process at pressure 1 Pa, the volume of the gas changes from 1 m3 to 5 m3, what is the work done by the gas?`

1.1 J

2.4 J

3.5 J

4.10 J

Posted Date:-2022-03-15 18:38:04

## Question: ` For an ideal gas isobaric process what is the work done by the gas from 2 m3 to 0.5 m3 at 2 Pa?`

1.-3 J

2. 3 J

3. -5 J

4.5 J

Posted Date:-2022-03-15 18:39:32

## Question: ` For endothermic reactions, what is the heat of reaction?`

1. Positive

2.Negative

3.Zero

4.cannot say

Posted Date:-2022-03-15 18:40:36

## Question: ` Ice having CP = 15 J/oC, is heated from -10oC to -4oC, what is the enthalpy change?`

1.30 J

2. 60 J

3. 90 J

4.120 J

Posted Date:-2022-03-15 18:18:42

## Question: ` In a 3 stage process Q1 = 10 J, Q2= â€“ 15 J, Q3 = 25 J, if âˆ†E1 = 15J and âˆ†E3 = 10 J, what is the work done in second stage, if the total âˆ†E is 30 J?`

1. 5 J

2.10 J

3.15 J

4.20 J

Posted Date:-2022-03-15 18:16:33

## Question: ` In an open, steady state adiabatic process if the change in kinetic energy is 10 J and change in potential energy is 15 J, what is the work done by the system?`

1.10 J

2. 15 J

3.25 J

4. -25 J

Posted Date:-2022-03-15 18:35:02

## Question: ` In an open, steady state system if the heat transferred is 10 J and work done by the system is 5 J, what is the change in Potential energy (neglect kinetic energy)?`

1. 5 J

2.-5J

3.15 J

4.-15 J

Posted Date:-2022-03-15 18:35:25

## Question: ` Liquid benzene having CP = 29 J/oC, is heated from 5oC to 10oC, what is the enthalpy change?`

1. 29 J

2.145 J

3. 195 J

4.290 J

Posted Date:-2022-03-15 18:18:08

## Question: `1 J of heat is supplied to the system and 1 kJ of work is done by the system, then the system is which of the following?`

3.Closed

4.None of the mentioned

Posted Date:-2022-03-15 18:31:55

## Question: `10 J of heat and 5 J of work is supplied to a system and 20 J of heat is taken out, then the system is which of the following?`

3.Closed

4.None of the mentioned

Posted Date:-2022-03-15 18:30:46

## Question: `10 J of heat is taken off from a steady state system, what is the work done on the system?`

1. â€“ 10 J

2.10 J

3. â€“ 5 J

4. 5 J

Posted Date:-2022-03-15 18:28:26

## Question: `10 J of work and 5 J of heat is supplied to the system, then the system is which of the following?`

3.Closed

4.None of the mentioned

Posted Date:-2022-03-15 18:32:24

## Question: `10 J of work is done on a steady state system, what is the heat supplied to the system?`

1. â€“ 10 J

2.10 J

3. 5 J

4.0.8

Posted Date:-2022-03-15 18:30:00

## Question: `15 J of heat and 10 J of work is supplied to a system and 25 J of heat is taken out, then the system is which of the following?`

3. Closed

4.None of the mentioned

Posted Date:-2022-03-15 18:31:09

## Question: `15 J of heat is supplied to a system and 15 J of work is done on the system, then the system is which of the following?`

3.Closed

4.None of the mentioned

Posted Date:-2022-03-15 18:31:29

## Question: `15 J of work is done by a steady state system, what is the heat supplied to the system?`

1.â€“ 15 J

2.15 J

3.10 J

4.â€“ 10 J

Posted Date:-2022-03-15 18:30:22

## Question: `2 Kg of steam is enclosed in a container with internal energy = 5 J/Kg, then 5 J of heat is supplied to the system, what is the final internal energy?`

1. 7.5 J/ Kg

2.15 J/Kg

3.22.5 J/Kg

4.30 J/Kg

Posted Date:-2022-03-15 18:15:18

## Question: `A mixture contains 20% O2 with CP = 10 J/oC, 30% N2 with CP = 20 J/oC and 50% CO2 with CP= 40 J/oC, what is the average CP of mixture?`

1.20 J/oC

2. 28 J/oC

3.34 J/oC

4.42 J/oC

Posted Date:-2022-03-15 18:21:14

## Question: `A mixture contains 20% O2 with CP = 15 J/oC and 80% CO2 with CP = 20 J/oC, what is the average CP of mixture?`

1. 3 J/oC

2.9 J/oC

3.16 J/oC

4.19 J/oC

Posted Date:-2022-03-15 18:20:15

## Question: `A mixture contains 20% SO2 with CP= 35 J/oC, 30% NO3 with CP = 20 J/oC and 50% CO2 with CP = 40 J/oC, what is the average CP of mixture?`

1. 12 J/oC

2.17 J/oC

3.25 J/oC

4.33 J/oC

Posted Date:-2022-03-15 18:21:38

## Question: `A mixture contains 30% Ar with CP = 30 J/oC, 30% N2 with CP = 20 J/oC and 40% CH4 with CP = 10 J/oC, what is the average CP of mixture?`

1.7 J/oC

2.12 J/oC

3.19 J/oC

4.26 J/oC

Posted Date:-2022-03-15 18:20:40

## Question: `CP-T curve of H2 forms a rectangle of height 20 J/oC from 4oC to 5oC?`

1. 20 J

2.80 J

3.100 J

4.140 J

Posted Date:-2022-03-15 18:26:59

## Question: `Cyclohexane having CP = 48 J/oC, is heated from 50oC to 55oC, what is the enthalpy change?`

1. 240 J

2.480 J

3.720 J

4.960 J

Posted Date:-2022-03-15 18:19:30

## Question: `Enthalpy of reactants is 15 J/Kg and enthalpy of products is 40 J/Kg, what is the heat of reaction?`

1. -10 J/Kg

2. 10 J/Kg

3. -25 J/Kg

4.25 J/Kg

Posted Date:-2022-03-15 18:40:56

## Question: `Enthalpy of reactants is 50 J/Kg and enthalpy of products is 25 J/Kg, what is the heat of reaction?`

1. -10 J/Kg

2.10 J/Kg

3. -25 J/Kg

4. 25 J/Kg

Posted Date:-2022-03-15 18:41:19

## Question: `For an ideal gas isochoric process, what is the work done by the gas from 2 Pa to 1 Pa?`

1. 0

2.1 J

3. 200 J

4.None of the mentioned

Posted Date:-2022-03-15 18:39:12

## Question: `For an ideal gas isothermal process what is the work done by the gas from 1 m3 to 2 m3 at 300 K?`

1.0.69 kJ

2.1.24 kJ

3.1.73 kJ

4. 2.45 kJ

Posted Date:-2022-03-15 18:38:24

## Question: `For an ideal gas isothermal process what is the work done by the gas from 4 Pa to 1 Pa at 300 K?`

1. 1.22 kJ

2. 2.15 kJ

3.2.83 kJ

4.3.45 kJ

Posted Date:-2022-03-15 18:38:46

## Question: `For exothermic reactions, what is the heat of reaction?`

1.Positive

2.Negative

3. Zero

4.cannot say

Posted Date:-2022-03-15 18:40:14

## Question: `Heat Capacity of CO2 is given by 12 + 3T + T2, what is the enthalpy change from 0oC to 6oC?`

1.169 J

2.198 J

3.244 J

4.360 J

Posted Date:-2022-03-15 18:22:17

## Question: `Heat Capacity of water is given by 4 + T2, what is the enthalpy change from 0oC to 3oC?`

1.7 J

2.14 J

3.21 J

4. 32 J

Posted Date:-2022-03-15 18:22:38

## Question: `If the system is insulated which of the following might the process be?`

1.Isothermal

2.Isobaric

3.Isochoric

Posted Date:-2022-03-15 18:36:17

## Question: `In a 2 stage process Q1 = 5 J, Q2 = 10 J, if the change in internal energy in first stage is 10 J and the total change in internal energy is 20 J, what is the work do done in second stage?`

1. 0

2.5 J

3.10 J

4.â€“ 5 J

Posted Date:-2022-03-15 18:16:09

## Question: `In a closed system, change in internal energy is 10 J and heat transferred to it is 10 J what is the work done by the system?`

1. 0

2.10 J

3.-20 J

4.20 J

Posted Date:-2022-03-15 18:33:44

## Question: `In an open system, what is the enthalpy change is heat taken from it is 10 J?`

1.0

2.-10 J

3.10 J

4. Cannot be determined

Posted Date:-2022-03-15 18:34:35

## Question: `Steam having CP = 105 J/oC, is heated from 100oC to 104oC, what is the enthalpy change?`

1.210 J

2.420 J

3.630 J

4.840 J

Posted Date:-2022-03-15 18:19:06

## Question: `Water having CP = 10 J/oC, is heated from 10oC to 50oC, what is the enthalpy change?`

1.100 J

2.250 J

3.400 J

4.500 J

Posted Date:-2022-03-15 18:17:47

## Question: `What is âˆ†E for a steady-state system?`

1.Positive

2.Negative

3. Zero

4.cannot say

Posted Date:-2022-03-15 18:27:43

## Question: `What is the heat transferred to 2 Kg and 5 m3 of a rigid system, with change in enthalpy 5 J/Kg?`

1. 5 J

2.10 J

3.15 J

4. 20 J

Posted Date:-2022-03-15 18:17:08

## Question: `What is the value of CP â€“ CV for ideal gases?`

1.0

2.R/2

3.R

4.2R

Posted Date:-2022-03-15 18:19:52

## Question: `What is the work done by an open steady-state system if heat transferred to it is 10 J?`

1. 0

2.-10 J

3.10 J

4.Cannot be determined

Posted Date:-2022-03-15 18:33:19

## Question: `What is the work done for an ideal gas isothermal process?`

1. Zero

2.Equal to heat transferred

3. Equal to change in internal energy

4. Cannot say

Posted Date:-2022-03-15 18:37:09

## Question: `What is the work done for an isobaric process?`

1. Pâˆ†V

2. Vâˆ†P

3.PV

4.None of the mentioned

Posted Date:-2022-03-15 18:37:43

## Question: `What is the work done for an isochoric process?`

1. Positive

2.Negative

3.Zero

4.cannot say

Posted Date:-2022-03-15 18:36:47

## Question: `Which of the following is true for isothermal ideal gases?`

1.âˆ†T = 0

2.âˆ†U = 0

3.âˆ†H = 0

4.All of the Mentioned

Posted Date:-2022-03-15 18:35:49

## More MCQS

##### R4R Team
R4Rin Top Tutorials are Core Java,Hibernate ,Spring,Sturts.The content on R4R.in website is done by expert team not only with the help of books but along with the strong professional knowledge in all context like coding,designing, marketing,etc!