A sample of 10 g of liquid benzene at its boiling point is vaporised using a 12 V, 0.5 A electric supply. The normal boiling point and latent heat of vaporisation of benzene are 353.2 K and 30.8 * 10 3 kJ/kmol respectively. Determine: (a) the change in internal energy, (b) the time required for complete vaporisation.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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A sample of 10 g of liquid benzene at its boiling point is vaporised using a 12 V,
0.5 A electric supply. The normal boiling point and latent heat of vaporisation of benzene are
353.2 K and 30.8 * 10
3 kJ/kmol respectively. Determine: (a) the change in internal energy, (b)
the time required for complete vaporisation.

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