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2. Which one of the following is not extensive statefunction?Enthalpy change, internal energy change andpressure |
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Answer» Theinternal energy is astate functionof a system, because its value depends only on the currentstateof the system and not on the path taken or processes undergone to prepare it. It is an extensive quantity. Enthalpyis defined as astate functionthat depends only on the prevailing equilibrium stateidentified by the system'sinternal energy, pressure, and volume. It is an extensivequantity. Pressurecan also be classically defined as Force per unit Area. The ratio of twoextensive properties is anintensiveproperty. Hence, pressure is the right answer |
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