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Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

C11 Internal Energy

C11 Internal Energy

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Question 1 of 5

1. Question

Internal Energy of a system includes

kinetic energy of the particles in the system

kinetic energy of the system as a whole like a stone falling on the ground

potential energy of the particles in the system

energy stored in the chemical bonds

potential energy the system due to gravitational field

potential energy the system due to external electric field

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Question 2 of 5

2. Question

Which of the following are correct about Internal energy?

It is a state function

its value depends on the path through which the value has been reached

Its value depends only on the initial and final state of the system

Internal energy of a system can never be changed

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Question 3 of 5

3. Question

Heat change $q$ for isothermal reversible process =

\(-P_{ext} \times \Delta V\)

\(P_{ext} \times \Delta V\)

\(-nRT \ln {V_f \over V_i}\)

\(nRT \ln {V_f \over V_i}\)

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Question 4 of 5

4. Question

Heat change $q$ for isothermal irreversible process =

\(-P_{ext} \times \Delta V\)

\(P_{ext} \times \Delta V \)

\(-nRT \ln{V_f \over V_i}\)

\(nRT \ln{V_f \over V_i}\)

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Question 5 of 5

5. Question

Which is/are true about adiabatic process?

heat change \(q = 0\)

heat change \(q = w_{ad}\)

\(\Delta U = q\)

\(\Delta U = w_{ad}\)

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Points Table
Viva questions for Physics Class 12
विज्ञान 10 – महत्वपूर्ण MCQs
Fundamentals of Arithmetic
Science 10 – Important MCQs

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