Physics, 04.11.2020 14:20 enrique3300
En un dispositivo cilindro-émbolo, se tiene agua inicialmente como vapor saturado a 1,5 bar. Se extrae 490 kJ/kg de calor a presión constante hasta que su volumen específico llega a 0,907 m3/kg. Posteriormente, se le suministra calor a volumen constante hasta que la presión alcanza los 3 bar. Suponiendo que es posible despreciar variaciones de energía mecánica:
a. Escriba el balance energético para este sistema cerrado.
b. Identifique las propiedades termodinámicas v y u para cada uno de los tres estados.
c. Calcule el trabajo, calor y variación de energía interna (por unidad de masa) para los procesos 1-2, 2-3.
Answers: 3
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Jenny wants to test the electrical conductivity of two substances dissolved in water. she is preparing the containers for the experiment. which factor is most important for her to control? a) volumes of the solutions b) appearance of the solutions c) temperatures of the solutions d) concentrations of the solutions
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En un dispositivo cilindro-émbolo, se tiene agua inicialmente como vapor saturado a 1,5 bar. Se extr...
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