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The physical quantity that determins whe...

The physical quantity that determins whether or not a given system A is in thermal equilibrium with another system B is called

A

Pressure

B

Volume

C

temperature

D

none of these

Text Solution

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The correct Answer is:
C
In thermal equilibrium, another system B , temperature
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According to kinetic theory of gases, absolute temperature of a gas is directly proportional to the average kinetic energy of translation per molecules to the gas. Zeroth law of thermodynamics established that temperature is the obly physical quantity that determines whether a given system is in thermal equilibrium with another system. heat flows from a system at higher temperatures to another system at lower temperature till their temperatures becomes equal. temperature corresponds to level in case of liquids, pressure in case of gases potential in case of electricity. Read the above passage and answer the following questions : (i) The absolute temperature of a gas is increased three times. what will be the increase in rms velocity of gas molecules ? What values of life do you learn this concept of temperature ?

The system is in equilibrium. Find the angle theta

Knowledge Check

  • A system is said to be in thermal equilibrium if

    A
    the macroscopic variable do not change in time
    B
    the microscopic variable change in time
    C
    the macroscopic variables depend on time
    D
    none of above

  • A system X is neither in thermal equilibrium with Y nor with Z. The systems Y and Z

    A
    must be in thermal equilibrium
    B
    cannot be in thermal equilibrium
    C
    may be in thermal equilibrium.
    D
    None of the above

  • The equilibrium constant of a system is

    A
    temperature dependent
    B
    temperature independent
    C
    dependent on concentration of reactants
    D
    dependent on concentration of catalyst

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