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Considere un Dewar de 1 0 0 L ( un recipiente de doble pared para almacenar l quidos criog nicos ) . El Dewar contiene

Considere un Dewar de 100 L (un recipiente de doble pared para almacenar lquidos criognicos). El Dewar contiene nitrgeno a 1 atm, que es 90% lquido y 10% de vapor en volumen. El aislamiento mantiene la transferencia de calor del ambiente al Dewar a un valor tan bajo como 5 J/s. Accidentalmente, la vlvula de ventilacin se cierra, de modo que la presin en el interior aumenta con lentitud. Se estima que el Dewar se romper cuando la presin llegue a 541 kPa. Cunto tiempo transcurrir hasta alcanzar esta presin? utilizando la primera ley de la termodinamica

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