3 Compute the density for nickel at 700°C, given that its room-temperature (20°C) density is 8.902 g/cm The value of a given for nickel is 13.3 × 10˚° (°C)¯¹ -6 Select one: 3 Oa. 1.0271 cm 3 Ob. 1.0231 cm O O 3 c. 1.0311 cm 3 d. 1.0351 cm

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.