Work Done In Thermodynamics

The initial rate of hydrolysis of methyl acetate by a weak acid is 1/100th of that of a strong acid , at The is

The ends and of two thin wires, and , are soldered (joined) together. Initially each of the wires has a length of at . Now the end is maintained at , while the end is heated and maintained at . The system is thermally insulated from its surroundings. If the thermal conductivity of wire is twice that of the wire RS and the coefficient of linear thermal expansion of is , the change in length of the wire is