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TERMODINÀMICA (Curs Total)
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Which relationship exists between the evaporation temperature and the evaporation pressure of a pure substance (if the evaporation temperature increases, the evaporation pressure increases, remains constant or decreases)?
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A closed system does a mechanical work of 600 J on the environment while it releases 600 J on the environment. Compute the change in its internal energy.
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A mixing chamber has two inputs (A and B) and one output (C). Overheated vapour comes through input A, compressed liquid water comes through input B and at the output we obtain a mixture liquid-vapour. Write the energy balance at the chamber, and the relationship between the pressures A, B and C
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Define the massic and the volumetric flow through a pipe, and state the relation between them.
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What physical significance does it have the area below the curve of a process in the p-v graph?
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Write the equation that gives the pressure p as a function of the depth h in a lake
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Which is the difference between the critical and triple points of a pure substance?
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Draw schematically the p-V graph of a cycle where an ideal gas follows an isothermal expansion, a polytropic expansion of polytropic index 2 and an adiabatic compression
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Consider the relationship ΔH = m·Cp·ΔT, where Cp is the average specific heat at constant pressure in the ΔT interval for an ideal gas. Is it valid only for processes at constant pressure, or is it valid for any process?
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Define briefly the Andrews' bell
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