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Define state variables and equation of s...

Define state variables and equation of state .

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State variables : The variables which determine the thermodynamic behaviour of a system are called "state variables ".
If the system is a gas , then P, V and T (for a given mass ) are called state variables .
Equation of state : The general relationship between pressure volume and temperature for a given mass of the system (eg ., gas ) is called "equation of the state ."
For n moles of an ideal gas , the equation of state is , PV = nRT.
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Knowledge Check

  • Transition element which does not show variable oxidation state is

    A
    `Sc`
    B
    `Zn`
    C
    `Cu`
    D
    `Fe`

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