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What kind of system does a thermos flask...

What kind of system does a thermos flask containing coffee represents?

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Knowledge Check

  • A thermos flask is polished well

    A
    To make attractive
    B
    For shining
    C
    To absorb all radiations from outside
    D
    To reflect all radiations from outside

  • Hot water in a thermos flask is an example for

    A
    Isolated system
    B
    Open system
    C
    Closed system
    D
    Adiabatic system

  • Tea placed in thermos flask is an example of

    A
    Open system
    B
    Close system
    C
    Isolated system
    D
    It can't act as system
    • AAKASH INSTITUTE-THERMODYNAMICS-TRY YOURSELF
    1. What kind of system does a thermos flask containing coffee represents?

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    2. A tree represents an system.

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    3. In the equationn pV = nRT, how many state varibles are present?

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    4. Temperature is a state functionn or not?

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    5. Consider the following figure andtell the nature of work done.

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    6. A beaker containing water at 373 K is representig an open system, is p...

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    7. 160 J of work is done on the system and at the same time 100 J of heat...

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    8. If change in internal energy -80 J. The work done by system is +40 J. ...

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    9. If the external pressure is more than internal pressure then what will...

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    10. What would be the sign convention for work done on a system for a cyli...

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    11. One mole of oxygen is allowed to expand isothermally and reversibly fr...

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    12. How much heat would be absorbed by two litres of an ideal gas at 5 atm...

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    13. The heat of combustion of napthalene {C(10)H(8)(s)} at constant volume...

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    14. How it is possible to find the value of Delta U and not the value of U...

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    15. Out of pressure, mass, moles and volume, which is an intensive propert...

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    16. Pick the odd one out : (Intensive or extensive). Refractive index, d...

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    17. Calculate the amount of heat required to raise the temperature of 5 g ...

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    18. Calculate the weight of gold having specific heat capacity 0.13 J (.^(...

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    19. 90 g of water spilled out from a vessel in the room on the floor. Assu...

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