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The internal energy of a system is U(1)....

The internal energy of a system is `U_(1)`. In a process, work done by the system is W and heat accepted by the system is Q. At the end of the process, the internal energy of the system is

A

`U_(1) + Q - W`

B

`U_(1) - Q + W`

C

`U_(1) + Q + W`

D

`U_(1) - Q - W`

Text Solution

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The correct Answer is:
A
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CHHAYA PUBLICATION-FIRST AND SECOND LAW OF THERMODYNAMICS-Exercise - Multiple Choice Questions (Mark 1)
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  2. If the volume of a gas of a certain mass changes from 1 L to 0.5 L at ...

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  3. The internal energy of a system is U(1). In a process, work done by th...

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  4. The work done by an ideal gas at constant temperature is 10 J. the amo...

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  5. The work done by an ideal gas at constant pressure is 10 J. The amount...

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  6. If the internal energy U and the work W are expressed in unit of J and...

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  8. If R = 2 cal cdot mol^(-1) cdot^(@)C^(-1) and hydrogen is assumed to b...

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  9. Work done becomes zero

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  10. The change in internal energy of an ideal gas becomes zero

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  11. The process in which changes in pressure, volume and temperature occur...

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  12. It is observed by comparing the specific heat of all solid, liquid and...

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  13. In an adiabatic expansion, the change in internal energy of 10 mol of ...

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  14. Which of the following relations does an ideal gas follow in an adiaba...

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  15. The slope of an isothermal curve is always

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  16. Heat cannot transmit from a body at lower temperature to a body at hig...

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  17. A system can go from state A to state B in two different processes 1 a...

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  18. In a given process of an ideal gas, dW = 0 and dQ < 0. Then for the g...

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