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The internal energy change in a system t...

The internal energy change in a system that has absorbed 2 kcal of heat and done 500 J of work is

A

6400 J

B

5400 J

C

7900 J

D

8900 J

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH INSTITUTE ENGLISH-THERMODYNAMICS-ASSIGNMENT (SECTION -C) (Previous Year Questions)
  1. A monoatomic gas at pressure P(1) and volume V(1) is compressed adiaba...

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  2. In thermodynamic processes which of the following statements is not tr...

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  3. The internal energy change in a system that has absorbed 2 kcal of hea...

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  4. If Q, E and W denote respectively the heat added, change in internal e...

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  5. At 10^(@)C the value of the density of a fixed mass of an ideal gas di...

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  6. The efficiency of a heat engine is 1//6Its efficiency double when the ...

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  7. A Carnot engine whose sink is at 300K has an efficiency of 40%. By how...

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  8. The molar specific heat at constant pressure of an ideal gas is (7/2)R...

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  9. Which of the following processes is reversible

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  10. An ideal gas heat engine operates in Carnot cycle between 227^(@)C and...

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  11. A system is taken from state a to state c by two paths abc and abc as ...

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  12. Consider two insulated chambers (A,B) of same volume connected by a cl...

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  13. A Carnot engine has efficiency 25%. It operates between reservoirs of ...

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  14. In an adiabatic change the pressure and temperature of monoatomic gas ...

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  15. An ideal Carnot engine, whose efficiency is 40% receives heat at 500 K...

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  16. A diatomic gas initially at 18^(@)C is compressed adiabatically to one...

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  17. An ideal gas underging adiabatic change has the following pressure-tem...

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  18. A sample of gas expands from volume V(1) to V(2). The amount of work d...

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  19. The efficiency of a Carnot engine operating between temperatures of 10...

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  20. We consider a thermodynamic system. If Delta U respresents the increas...

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