Liquid isobutane is throttled through a valve from an initial state of 360 K and 4,000...

 

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Liquid isobutane is throttled through a valve from an initial state of 360 K and 4,000 kPa to a final pressure of 2,000 kPa. Estimate the temperature change and the entropy change of the isobutane. The specific heat of liquid isobutane at 360 K is 2.78 J g1°C. Estimates of Vand B may be found from Eq. (3.72). sat Liquid isobutane is throttled through a valve from an initial state of 360 K and 4,000 kPa to a final pressure of 2,000 kPa. Estimate the temperature change and the entropy change of the isobutane. The specific heat of liquid isobutane at 360 K is 2.78 J g1°C. Estimates of Vand B may be found from Eq. (3.72). sat