TAREA 1 TERMODINAMICA II.doc

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FECHA: NOMBRE: CURSO: PROFESORA: TAREA #1 EJERCICIOS PROPUESTOS 1. Encontrar la variación de energía interna que experimenta un gas que inicialmente cuenta con un volumen de 8 L a 3 atm de presión, cuya temperatura pasa de 30 ºC a 56 ºC en un proceso a volumen constante, sabiendo que su calor específico viene dado por c v = 2.5· R , con R = 8.31 J/mol·K. 2. Un gas está confinado en un cilindro por un pistón. La presión inicial del gas es 7 bar, y el volumen es 0.10 m3. El pistón se mantiene en su posición mediante unos seguros que se encuentran en la pared del cilindro. Todo el aparato está colocado dentro de un vacío total. Cuál es el cambio de energía en el aparato si se quitan los seguros de
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