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Third law of thermodynam..



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Q1. The proof that work done in all reversible processes is same can be done by violating Kelvin-Planck statement.

(a) true
(b) false
(c)
(d)

Q2. The work done by a closed system in a reversible process is always ___ that done in an irreversible process.

(a) less than or more than
(b) equal to
(c) less than
(d) more than

Q3. Which of the following is mostly neglected while doing calculations for finding maximum work?

(a) KE
(b) PE
(c) both of the mentioned
(d) none of the mentioned

Q4. Which of the following is true for a closed system?

(a) mass entering = mass leaving
(b) mass does not enter or leave the system
(c) mass entering can be more or less than the mass leaving
(d) none of the mentioned

Q5. Which of the following is true for a steady flow system?

(a) mass entering = mass leaving
(b) mass does not enter or leave the system
(c) mass entering can be more or less than the mass leaving
(d) none of the mentioned

Q6. In an open system, for maximum work, the process must be entirely

(a) irreversible
(b) reversible
(c) adiabatic
(d) none of the mentioned

Q7. Work done in all reversible processes is equal.

(a) true
(b) false
(c)
(d)

Q8. Which of the following is true?

(a) Q for reversible > Q for irreversible and work for reversible < work for irreversible
(b) Q for reversible < Q for irreversible and work for reversible > work for irreversible
(c) Q for reversible < Q for irreversible and work for reversible < work for irreversible
(d)

Q9. For a process from state 1 to state 2, heat transfer in an irreversible process is given by

(a) Q for irreversible=(To)*(S1-S2)
(b) Q for irreversible>(To)*(S1-S2)
(c) Q for irreversible<(To)*(S1-S2)
(d) none of the mentioned

Q10. For a process from state 1 to state 2, heat transfer in a reversible process is given by

(a) Q for reversible=(To)*(S1-S2)
(b) Q for reversible=(To)*(S2-S1)
(c) Q for reversible=(To)/(S1-S2)
(d) Q for reversible=(To)/(S2-S1)


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416 views

A Well Stoppered Thermos Flask Contains Some Ice Cubes. This Is An Example Of A

Modified 237 Year Ago Bhavna

416
Bhavna
237 Year Ago

A Well Stoppered Thermos Flask Contains Some Ice Cubes. This Is An Example Of A

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0 Answer
364 views

Three Moles Of An Ideal Gas Expanded Spontaneously Into Vacuum. The Work Done Will Be

Modified 5 Year Ago

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Three Moles Of An Ideal Gas Expanded Spontaneously Into Vacuum. The Work Done Will Be

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354 views

In Order To Decompose 9 G Water 142.5 KJ Heat Is Required. Hence, The Enthalpy Of Formation Of Water Is

Modified 5 Year Ago

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5 Year Ago

In Order To Decompose 9 G Water 142.5 KJ Heat Is Required. Hence, The Enthalpy Of Formation Of Water Is

0 votes
0 Answer
351 views

Changes In A System From An Initial State To The Final State Were Made By A Different Manner That ΔH Remains Same But Q Changes Because

Modified 237 Year Ago

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237 Year Ago

Changes In A System From An Initial State To The Final State Were Made By A Different Manner That ΔH Remains Same But Q Changes Because

0 votes
0 Answer
347 views

If W Is The Amount Of Work Done By The System And Q Is The Amount Of Heat Supplied To The System. Identify The Type Of The System

Modified 237 Year Ago

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237 Year Ago

If W Is The Amount Of Work Done By The System And Q Is The Amount Of Heat Supplied To The System. Identify The Type Of The System

0 votes
0 Answer
334 views

The Entropy Change Involved In The Isothermal Reversible

Modified 314 Year Ago

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314 Year Ago

The Entropy Change Involved In The Isothermal Reversible

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0 Answer
304 views

Calculate The Amount Of Heat Evolved When 500 Cm^3 Of 0.1 M HCl Is Mixed With 200 Cm^3 Of 0.2 M NaOH.

Modified 5 Year Ago Bhuv

304
Bhuv
5 Year Ago

Calculate The Amount Of Heat Evolved When 500 Cm^3 Of 0.1 M HCl Is Mixed With 200 Cm^3 Of 0.2 M NaOH.

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