Four strain gauges, with specification given below, are available to measure the torque on a cylindrical shaft 4 cm in diameter connecting a motor and load. (a) Draw clearly labelled….
Express on the diagram the answers to the following questions
1.The melting point of CaTiSiOs is 1,400″C and the heat of fusion at the normal melting point is 123,700J mol-‘. Calculate the heat of fusion at 1,300″C. Cp,sd,d= 177.4 + 23.2xlO”T- 4O.3x1O5T2, J mol-‘K’ Cp,liguid = 279.6 J mol”K”
2. Enthalpy changes resulting from temperature change can be represented on an enthalpy-temperature diagram as shown in the figure. Express on the diagram the answers to the following questions:
1) Enthalpy change when solid A melts at T,,,
2) Enthalpy change when liquid A is super cooled
3) Enthalpy change when solid A is superheated from T,,, to T,, and then solidifies. from T,,, to T, and then melts