A chromel-constantan type thermocouple has a cold junction (or cold terminal) at the temperature of 20ºC. The tables provide the following values ​​for this thermocouple: 0°C for e.m.f = 0.000 mV; 20ºC for e.m.f = 1192 mV and 200ºC for e.m.f = 13419 mV. To determine: (a) The Seebeck coefficient (or proportionality constant) of this thermocouple. (b) The electrical voltage at the thermocouple terminals when the hot junction (or terminal hot) is at a temperature of 200ºC

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Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.