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Thermodynamics

Question
CBSEENCH11006266
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The following data is known about ZnSO4:
increment straight H space equals space 7.25 space kJ space mol to the power of negative 1 end exponent space and space increment straight S space equals space 7.0 space JK to the power of negative 1 end exponent space mol to the power of negative 1 end exponent Calculate its melting point.

Solution

At melting point, increment straight G space equals space 0 semicolon
                   increment straight H space equals space 7.25 space kJ space mol to the power of negative 1 end exponent semicolon increment straight S space equals space 7.0 space JK to the power of negative 1 end exponent space mol to the power of negative 1 end exponent space space space space space space space equals space 7.0 space cross times space 10 to the power of negative 3 end exponent kJ space straight K to the power of negative 1 end exponent space mol to the power of negative 1 end exponent
   Now comma space space space increment straight H space equals space straight T increment straight S therefore space space space space space space space straight T space equals space fraction numerator increment straight H over denominator increment straight S end fraction space equals space fraction numerator 7.25 space kJ space mol to the power of negative 1 end exponent over denominator 7 cross times 10 to the power of negative 3 end exponent space kJK to the power of negative 1 end exponent space mol to the power of negative 1 end exponent end fraction space space space space space space space space space space space equals 1035.7 space straight K

Some More Questions From Thermodynamics Chapter

Define extensive properties.

Why all living systems need to be 'open systems'?

Define state variables of a system.

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A thermodynamic state function is a quantity

What is reversible process in thermodynamics?

Define irreversible change.

Name the variable that is kept constant in isochoric process and isobaric process.

Give one difference between an isothermal and an adiabatic process.

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