(a)
Interpretation:
A closed tank with a valve which maintain gas flow from supply line contains gas at a lower pressure than same gas in supply line at constant
Concept Introduction:
The general mass balance across any system is,
.....(1)
The energy balance for a system is:
.....(2)
(b)
Interpretation:
Reduce the general form of energy balance found in part (a) to its simplest form for the ideal gas with constant heat capacities.
Concept Introduction:
For constant specific heat
And for ideal gas,
(c)
Interpretation:
Reduce the general form of energy balance form for the ideal gas with constant heat capacities found in part (b) to its simplest form for case of
Concept Introduction:
If it is given that
(d)
Interpretation:
Reduce the general form of energy balance form for the ideal gas with constant heat capacities for case of
Concept Introduction:
If it is given that
And for ideal gas,
(e)
Interpretation:
Assume nitrogen as an ideal gas with
Concept Introduction:
Number of moles of nitrogen that flow into the tank to equalize the pressures for two cases calculated by:
Where
The heat transfer between the supply line gas with temperature
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Introduction to Chemical Engineering Thermodynamics
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