5 J of heat is supplied to a steady state system, what is the work done by the system?
1. – 5 J
2.5 J
3.0
4.10 J
Posted Date:-2022-03-15 18:28:06
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
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
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
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
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
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
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
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
In a 3 stage process Q1 = 10 J, Q2= – 15 J, Q3 = 25 J, if ∆E1 = 15J and ∆E3 = 10 J, what is the work done in second stage, if the total ∆E is 30 J?
1. 5 J
2.10 J
3.15 J
4.20 J
Posted Date:-2022-03-15 18:16:33
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
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
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
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?
1.Steady state
2.Unsteady state
3.Closed
4.None of the mentioned
Posted Date:-2022-03-15 18:31:55
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?
1. Steady state
2.Unsteady state
3.Closed
4.None of the mentioned
Posted Date:-2022-03-15 18:30:46
10 J of heat is taken off from a steady state system, what is the work done on the system?
1. – 10 J
2.10 J
3. – 5 J
4. 5 J
Posted Date:-2022-03-15 18:28:26
10 J of work and 5 J of heat is supplied to the system, then the system is which of the following?
1. Steady state
2.Unsteady state
3.Closed
4.None of the mentioned
Posted Date:-2022-03-15 18:32:24
10 J of work is done on a steady state system, what is the heat supplied to the system?
1. – 10 J
2.10 J
3. 5 J
4.0.8
Posted Date:-2022-03-15 18:30:00
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?
1.Steady state
2.Unsteady state
3. Closed
4.None of the mentioned
Posted Date:-2022-03-15 18:31:09
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?
1. Steady state
2.Unsteady state
3.Closed
4.None of the mentioned
Posted Date:-2022-03-15 18:31:29
15 J of work is done by a steady state system, what is the heat supplied to the system?
1.– 15 J
2.15 J
3.10 J
4.– 10 J
Posted Date:-2022-03-15 18:30:22
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
If the system is insulated which of the following might the process be?
1.Isothermal
2.Isobaric
3.Isochoric
4.Adiabatic
Posted Date:-2022-03-15 18:36:17
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.– 5 J
Posted Date:-2022-03-15 18:16:09
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
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
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
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
What is ∆E for a steady-state system?
1.Positive
2.Negative
3. Zero
4.cannot say
Posted Date:-2022-03-15 18:27:43
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
What is the value of CP – CV for ideal gases?
1.0
2.R/2
3.R
4.2R
Posted Date:-2022-03-15 18:19:52
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
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
What is the work done for an isobaric process?
1. P∆V
2. V∆P
3.PV
4.None of the mentioned
Posted Date:-2022-03-15 18:37:43
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
Which of the following is true for isothermal ideal gases?
1.∆T = 0
2.∆U = 0
3.∆H = 0
4.All of the Mentioned
Posted Date:-2022-03-15 18:35:49