The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K0 + at, where, K is the thermal conductivity and T is the temperature (in °K). The units of ‘a’ in SI system will be________________?

Related Mcqs:

In case of a super-cooled solution, which is on the verge of crystallisation, the free energy of the solution as compared to that of the solid is ________________?

A. More B. Less C. Same D. More or less; depends on the nature of solution...

Vent pipes are provided in a condenser to ________________?

A. Remove non-condensable gases B. Purge the condenser C. Facilitate easy cleaning of tubes D. None of these...

Prandtl number for most of dry gases is about________________?

A. 0.001 B. 0.72 C. 70 D. 150...

Heat transfer by ____________ may not necessarily require the presence of a medium?

A. Conduction B. Natural convection C. Forced convection D. Radiation...

For the same heat transfer area and the terminal conditions, the ratio of the capacities of a single effect evaporator to a triple effect evaporator is_________________?

A. 3 B. 0.33 C. 1 D. 1.33...