## ΔQ, ΔU and ΔW - MCQ - Basic Level

Physics is an important subject in preparation for various Competitive exams. To keep a track of your preparation we have designed a small quiz of Basic Level Questions on ΔQ, ΔU and ΔW. You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. Work done in the given P-V diagram in the cyclic process is

•  PV
•  2PV
•  PV/2
•  3PV

Q2. Which of the following is not a thermodynamics co-ordinate

•  P
•  T
•  V
•  R

Q3. Which of the following can not determine the state of a thermodynamic system

•  Pressure and volume
•  Volume and temperature
•  Temperature and pressure
•  Any one of pressure, volume or temperature

Q4. In the figure given two processes A and B are shown by which a thermo-dynamical system goes from initial to final state F. If ΔQA and ΔQB are respectively the heats supplied to the systems then

•  ΔQA = ΔQB
•  ΔQA >= ΔQB
•  ΔQA < ΔQB
•  ΔQA > ΔQB

Q5. In the cyclic process shown in the figure, the work done by the gas in one cycle is

•  28 p1V1
•  14 p1V1
•  18 p1V1
•  9 p1V1

Q6. The internal energy of an ideal gas depends upon

•  Specific volume
•  Pressure
•  Temperature
•  Density

Q7. An ideal gas is taken around the cycle ABCA as shown in the P-V diagram. The net work done by the gas during the cycle is equal to

•  12 P1V1
•  6 P1V1
•  3 P1V1
•  P1V1

Q8. The internal energy U is a unique function of any state, because change in U

•  Does not depend upon path
•  Depend upon the path
•  Corresponds to an adiabatic process
•  Corresponds to an isothermal process

Q9. Corresponds to an isothermal process

•  Whenever heat is supplied to a gas, its internal energy increases
•  Internal energy of a gas must increase when its temperature is increased
•  Internal energy of a gas may be increased even if heat is not supplied to the gas
•  Internal energy of a gas is proportional to square of the velocity of the vessel in which gas is contained

Q10. P-V diagram of an ideal gas is as shown in figure. Work done by the gas in process ABCD is

•  4P0V0
•  2P0V0
•  3P0V0
•  P0V0

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