Recent content by M Wierckx

I think the piston can be moved, or else they would have made it a rigid tank.. I tried leaving the W out and making Q equal to U2-U1, but this is not correct.. The answer has to be eleven dot something (11,...kJ/kg).. but thanks for the reply!

Hi everybody, I'm having a problem with the following question: A piston-cylinder device originally contains 5 kg of saturated-liquid water at 100 kPa. Determine the heat addition required to bring the fluid to a saturated-vapor state. Using the first law.. i was thinking the following...