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    Physics
    Grade-9
    Easy

    Question

    The internal energy of a system is _____ to the temperature of the system.

    1. Directly
    2. Inversely
    3. Indirectly
    4. Not

    hintHint:

    The internal energy is the total amount of kinetic energy and potential energy of all the particles in the system. When energy is given to raise the temperature , particles speed up and they gain kinetic energy.

    The correct answer is: Directly

      The internal energy of an ideal gas is therefore directly proportional to the temperature of the gas. In this equation, R is the ideal gas constant in joules per mole kelvin (J/mol-K) and T is the temperature in kelvin. The internal energy of systems that are more complex than an ideal gas can't be measured directly.

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