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Objects A and B that are initially separ...

Objects `A` and `B` that are initially separated from each other and well isolated from their surroundings are then brought into thermal contact. Initially `T_(A) = 0^(@)C` and `T_(B) = 100^(@)C` . The specific heat of `A` is less than the specific heat of `B`. After some time, the system comes to an equilibrium state. the final temperatures are:

A

`T_(A) = T_(B) gt 50^(@)C`

B

`T_(A)gt T_(B)gt 50^(@)C`

C

`T_(A) = T_(B) lt 50^(@)C`

D

`T_(B)gtT_(A) gt 50^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
A
At equilibrium `T_(A) = T_(B)`
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ALLEN -GEOMETRICAL OPTICS-EXERCISE -01
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  2. In figure , heat is added to a pure substance in a closed container ra...

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  3. Objects A and B that are initially separated from each other and well ...

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  4. If H(C) , H(K) andH(F) are heat required to raise the temperature of ...

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  5. Steam at 100^(@)C is passed into 1.1 kg of water contained in a calori...

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  6. Water is used in car radiators as coolant because

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  7. If mass-energy equivalence is taken into account , when water is coole...

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  8. If the intermolecules forces vanish away, the volume occupied by the m...

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  9. A refrigerator converts 100 g of water at 25^(@)C into ice at -10^(@)C...

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  10. Pressure versus temperature graphs of an ideal gas are as shown in fig...

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  11. In a process the density of a gas remains constant. If the temperature...

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  12. The expansion of unit mass of a perfect gas at constant pressure is sh...

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  13. Air is filled at 60^(@)C in a vessel of open mouth. The vessle is heat...

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  14. One mole of an ideal gas undergoes a process p=(p(0))/(1+((V(0))/(V))...

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  15. Two identical glass bulbs are interconnected by a thin glass tube. A g...

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  16. As shown , a piston chamber pf cross section area A is filled with ide...

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  17. A gas has volume V and pressure p. The total translational kinetic ene...

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  18. A mixture of n(1) moles of monoatomic gas and n(2) moles of diatomic g...

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  19. Four containers are filled with monoatomic ideal gases. For each conta...

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  20. 10^(23) molecules of a gas strike a target of area 1 m^(2) at angle 45...

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