Consider a long wire of unstretched length Lo maintained at constant temperature T. The state of...

 

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Consider a long wire of unstretched length Lo maintained at constant temperature T. The state of the system is given by T = KT (-) where L is the length of the wire due to applications of tension t. KT a) Show that isothermal Young's modulus is Y = K (+243) and find out the expression A of Y at zero tension. b) Show that the internal energy is function of T'alone. c) Calculate the work done, the heat transferred and entropy change when it is isothermally stretched from Loto L. Consider a long wire of unstretched length Lo maintained at constant temperature T. The state of the system is given by T = KT (-) where L is the length of the wire due to applications of tension t. KT a) Show that isothermal Young's modulus is Y = K (+243) and find out the expression A of Y at zero tension. b) Show that the internal energy is function of T'alone. c) Calculate the work done, the heat transferred and entropy change when it is isothermally stretched from Loto L.

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The image contains a question divided into three parts concerning thermodynamics and mechanical behavior of a stretched wire It provides an equation for the tension in the wire in terms of temperature ... View the full answer