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WorksheetsThermodynamics
Total questions: 20
Worksheet time: 2hrs 40mins
If the gas is heated at a constant volume, the incoming heat is converted to external work.
Apabila gas pada volume tetap dipanaskan, maka kalor yang diterima itu akan diubah menjadi usaha luar
True
False
1The heated gas molecules' kinetic energy will increase.
Energi kinetic molekul gas yang dipanaskan akan bertambah.
True
False
When an ideal gas is compressed adiabatically, its internal energy increases.
Energi dalam sebuah gas ideal akan bertambah jika dimampatkan secara adiabatic.
True
False
The temperature of an ideal gas is directly proportional to its energy.
Energi dalam gas ideal berbanding lurus dengan suhu gas.
True
False
Work is not done by an ideal gas that grows its volume isobarically.
Gas ideal yang melakukan pengembangan volume secara isobaric tidak melakukan usaha
True
False
When an ideal gas expands, the amount of work it does is proportional to the change in gas pressure.
Usaha yang dilakukan oleh gas ideal Ketika mengembang sebanding dengan perubahan tekanan gas
True
False
The first law of thermodynamics is a restatement of the
Thermal equilibrium
Principle of entropy
Law of heat addition
Conservation of energy
The basic law of thermodynamics
Look at picture below.
Proses B on the PV diagram is an …. process
Isochoric compression
isochoric expansion
isobaric compression
Isobaric expansion
Reversible
Carnot cycles are includes ....
2 adiabatic processes and 2 isobaric processes
2 adiabatic processes and 2 isochoric processes
2 isochoric processes and 2 isobaric processes
2 adiabatic processes and 2 isothermic processes
2 isothermic processes and 2 isobaric processes
When applying the first law of thermodynamics to a system, when is heat a positive quantity?
when the system does work
when the system absorbs heat
when no work is done either on the system or by the system
when the system has work done on it
when the system loses heat
For an isothermal process, which of the following statements is correct .... ?
Work, heat, and internal energy all undergo changes.
Work and heat balance each other, so that there is no change in internal energy.
No work is done; internal energy change is due to heat.
No energy is transferred as heat; internal energy change is due to work.
The change in internal energy equals with work
In an enclosed area, an ideal monoatomic gas with a pressure of 2 x 106 Pa and a volume of 25 liters experiences an isobaric process, reducing the volume become 10 Liters. the gas then goes through an isobaric phase, which changes the pressure to 5 x 106 Pa, before going through an isothermic process, which restores the pressure and volume tot he original positions. The process is represented by the graph ....
The engine's maximum efficiency is 40% if the high temperature reservoir is 800K. The temperature of the high-temperature reservoir must be ... K in order for its maximum efficiency to climb to 50%.
900
960
1000
1180
1600
The work done by an ideal gas through an isochoric process from pressure P1 to P2 is ....
0
P1(V2-V1)
P2V2
( P1 - P2 )V
The efficiency of a Carnot engine with a high temperature reservoir of 7270C is 30%, thus the low temperature reservoir is...
3270C
3730C
4170C
4270C
7000C
An adiabatic process occurs in a system. The system 100 J is being worked on. If the heat absorbed by the system is Q and the change of internal energy in the system is ∆U, then…
∆U= -1000J
∆U= -100J
∆U= 100J
∆U= 10J
Q=0
1,5 m3 helium gas with temperature 270C is heated with isobaric process until the temperature reaches 870C. If the pressure of the helium gas is 2 x 105 Pa, the helium gas does an external work of ….
60 kJ
120 kJ
280 kJ
480 kJ
660 kJ
A quantity of gas is contained in a 500 L closed cylinder with a pressure of 4 atm (1 atm = 1 x 105 Pa). If the gas's initial temperature is 37°C, the amount of work when it goes through an isobaric process to increase its volume to 4 times its original volume is....
20 kJ
40 kJ
400 kJ
60 kJ
600 kJ
An ideal gas undergoes the process below. Calculate the total work is conducted in one cycle
32
48
52
64
80
The process below is an isothermal process.
If P1 = 20 Pa, V2=5 m3, and V1=4 m3, what is the value of P2 (in Pa)?
8
16
25
32
