The constants `a and b` for the pair silver-lead are `2.50 muV^@ C^(-1) and 0.012mu V^@ C^(-2)` respectively. For a silver-lead thermocouple with colder junction at `0^@ C`,

The thermoelectric powers of iron and nickel with respect to lead are +12 and -20 muV respectivelty at 50^(@)C . Find the emf of the an iron-nickel thermocouple with junctions at 0^(@)C and 100^(@) C.

The thermoelectric powers of iron and copper with respect to lead are +10.5 and -3.5 mu V respectively at 100^(@)C . Find the emf of Cu-Fe thermocouple when its junctions are maintained at 50^(@) and 150^(@) C.

The thermoelectric pewers of Pt, Ni and Fe are -4 , -21 and 12 muV per 0^(@)C respectively . What will be the magnitude of emf of Pt-Ni and Ni-Fe thermocouples with junctions at 0^(@)C and 100^(@)C ?

Thermocouples are used to measure temperature in the linear parts of the emf versus temperature graph wilth cold junction at 0^(@)C . The thermo electric power of Pt, Ni thermocouple are =-4 and -20 microcolt per .^(@)C respectively. What will be the magnitudes of emfs of the thermocopule when thecold junction is at 0^(@)C and the hot junction is at 100^(@)C ?

The values of equilibrium constant for a particular reaction at 25^(@) C and 50^(@)C are 0.08 and 0.12 respectively. State whether it is an exothermic or an endothermic reaction.

The standard electrode potential values of the elements A, B and C are 0.68, -2.50 and -0.50 V respectively. The order of their reducing power is :

The standard electrode potentials of elements A,B and C are+0.68, -2.50 and -0.50 V respectively.The correct order of their reducing powers is: