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Justify the following statements : At...

Justify the following statements :
At low temperatures, enthalpy change dominates the `Delta G` expression and at high temperatures it is the entropy which dominates the value of `Delta G`.

Text Solution

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`Delta G = Delta H - T Delta S`, At low temperatures `Delta H gt T Delta S` whereas at high temperatures
`T Delta S gt Delta H " ":. Delta G` decreases, i.e., becomes negative.
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Knowledge Check

  • Which of the following gas is used in very low temperature thermometers?

    A
    He
    B
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  • Which of the following is used in high temperature thermometer?

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  • Which of the following concentration factor is affected by change in temperature ?

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    B
    molality
    C
    mole fraction
    D
    weight fraction

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