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Zeroth law of thermodyna..



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Q1. The door of a domestic refrigerator is kept open while the switch is on. Then the room will ___________

(a) Get heated
(b) Ger neither heated nor cooled
(c) Gets cooled
(d) Gets heated first and then cools

Q2. . The inside and outside temperature of a refrigerator are 273K and 303K respectively. Assuming that refrigerator cycle is reversible, for every joule of work done, the heat delivered to the surrounding will be?

(a) 10 J
(b) 20 J
(c) 30 J
(d) 50 J

Q3. Which of the following is not a state function?

(a) Work done at constant pressure
(b) Enthalpy
(c) Work done by conservative force
(d) Work done by non0conservative force

Q4. Assertion: When a glass of hot milk placed in a room is allowed to cool, its entropy decreases.

(a) Both assertion and reason are true and the reason is the correct explanation of the assertion
(b) Both assertion and reason are true but the reason is not the correct explanation of the assertion
(c) Assertion is true but the reason is false
(d) Both assertion and reason are false

Q5. Calculate the work done if temperature is changes from 0?C to 200?C at one atmosphere.

(a) 100 cal
(b) 200 cal
(c) 400 cal
(d) 800 cal

Q6. Which of the following parameters does not characterize the thermodynamic state of matter?

(a) Temperature
(b) Pressure
(c) Work
(d) Volume

Q7. A system, after passing through different states returns back to its original state, is called ___________

(a) Cyclic process
(b) Isothermal process
(c) Adiabatic process
(d) Isobaric process

Q8. In a thermal process, the pressure of a fixed mass of a gas is changed in such a manner that the gas molecules give out the heat of 30J and work of 10J is done on the gas. If the initial internal energy of the gas was 40 J, then the final internal energy will be?

(a) 30 J
(b) 20 J
(c) 60 J
(d) 40 J

Q9. Zeroth law of thermodynamics helped in the creation of which scale?

(a) Temperature
(b) Heat energy
(c) Pressure
(d) Internal energy

Q10. Zeroth law of thermodynamics can be derived. It is not based on observation. True or False?

(a) True
(b) False
(c) Both acidolysis and aldehyde
(d) None of the mentioned


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0 Answer
416 views

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

Modified 236 Year Ago Bhavna

416
Bhavna
236 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 4 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 4 Year Ago

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4 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 236 Year Ago

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236 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 236 Year Ago

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236 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 313 Year Ago

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313 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 4 Year Ago Bhuv

304
Bhuv
4 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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