Constant Pressure Process-2
Let us assume paddle wheel work is done on the system figure 7.2. Also, consider adiabatic walls, so that
Figure 7.2 Now the application of first law enables us to write
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(7.6) |
or
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(7.7) |
or
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(7.8) |
Therefore, the increase in the enthalpy of the system is equal to the amount of shaft work done on the system. Here in Eqn (7.8), we get the magnitude. Since the work is done on the system, the quantity is negative.
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