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During the melting of a slab of ice at 2...

During the melting of a slab of ice at 273 K at atmospheric pressure:

A

positive work is done by he ice-water system on the atmosphere

B

positive work is done on the ice-water system by the atmosphere

C

internal energy of ice-water system decreases

D

none of the above

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The correct Answer is:
B
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Unit of atmospheric pressure is

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The latent heat of fusion of ice is the amount of energy required to change 1 kg of ice completely Into water at atmospheric pressure :

Calculate the heat required to convert 3 kg of ice at -12 ^(@) C kept in a calorimeter to steam at 100^(@) C at atmospheric pressure. Given specific heat capacity of ice = 2100 J kg^(-1) K^(-1) , specific heat capacity of water = 4186 J kg^(-1) K^(-1) , latent heat of fusion of ice = 3.35 xx 10^(5) J kg^(-1) and latent heat of steam = 2.256 xx 10^(8) J kg^(-1) .

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What is the entrophy change in JK^(-1) during the melting og 27.3 g ice at 0^(@)C ?(Latent heat of fusion of ice =330 Jg^(-1)

AAKASH SERIES-THERMODYNAMICS-ADDITIONAL PRACTICE EXERCISE (LEVEL - I (MAIN) STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  2. In a P-V diagram for an ideal gas (where P is along the y-axis and V i...

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  3. Internal energy of n1 moles of hydrogen at temperature T is equal to ...

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  4. In carnot engine efficiency is 40% at hot reservoir temperature T. For...

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  5. A container having 1 mole of a gas at a temperature 27^@C has a movab...

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  6. An ideal gas is found to obey pV^(3/2) = constant during an adiabatic ...

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  7. By opening the door of a refrigerator inside a closed room:

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  8. During the melting of a slab of ice at 273 K at atmospheric pressure:

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  9. Which of the following parameters does not characterise the thermodyna...

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  10. An ideal gas has molar specific heat 5R/2 at constant pressure. If 300...

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  11. Consider the following statement. The internal energy of an ideal mono...

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  12. At atmospheric pressure, 2 g of water having a volume of 2.00cm become...

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  13. What is the most likely value for Cr (molar heat capacity at constant...

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  14. Ideal gas undergoes an adiabatic change in its state form (P1 , V1 , T...

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  15. Then two moles of oxygen is heated from 0^@C to 10^@C at constant vol...

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  16. If heat Q is added reversibly to a system at temperature T and heat Q....

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  17. Which of the graphs shown below represents the variation of beta = -1...

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  18. 100 g of water is heated from 30^@C to 50^@C. Ignoring the slight expa...

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  19. A carnot engine operating between temperatures T1 and T2 has efficien...

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  20. A thermally insulated vessel contains an ideal gas of molecular mass M...

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