Collagen is the most abundant protein in the mammalian body. It is a fibrous protein tha...

Collagen is the most abundant protein in the mammalian body. It is a fibrous protein that serves to strengthen and support tissues. Suppose a collagen fiber can be stretched reversibly with a force constant of and that the force, F (see Table 2.1) is given by F = -k I. When a collagen fiber is contracted reversibly, it absorbs heat . Calculate the change in the Hehnholtz energy, ΔA, as the fiber contracts isothermally from I = 0.20 to 0.10 m. Calculate also the reversible work performed Assume that the temperature is constant at T = 310. K.