Heat and Mass Transfer The heat transfer from a hot body to a cold body is directly proportional to the surface area and difference of temperatures between the two bodies. This statement is called Newton's law of cooling Stefan's law First law of thermodynamics Newton's law of heating Newton's law of cooling Stefan's law First law of thermodynamics Newton's law of heating ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The unit of overall coefficient of heat transfer is kcal/m hr °C kcal/m² hr °C kcal/hr °C kcal/m² kcal/m hr °C kcal/m² hr °C kcal/hr °C kcal/m² ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Depending on the radiating properties, a body will be white when (Where a = absorptivity, p = reflectivity, x = transmissivity) P=1, T = 0 and a = 0 X = 0, a + p = 1 P = 0, x = 1 and a = 0 P = 0, x = 0 and a = 1 P=1, T = 0 and a = 0 X = 0, a + p = 1 P = 0, x = 1 and a = 0 P = 0, x = 0 and a = 1 ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Conduction is a process of heat transfer From a hot body to a cold body, in a straight line, without affecting the intervening medium None of these From one particle of the body to another without the actual motion of the particles From one particle of the body to another by the actual motion of the heated particles From a hot body to a cold body, in a straight line, without affecting the intervening medium None of these From one particle of the body to another without the actual motion of the particles From one particle of the body to another by the actual motion of the heated particles ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer Total heat is the heat required to Change liquid into vapour Change vapour into liquid Convert water into steam and superheat it Increase the temperature of a liquid or vapour Change liquid into vapour Change vapour into liquid Convert water into steam and superheat it Increase the temperature of a liquid or vapour ANSWER DOWNLOAD EXAMIANS APP
Heat and Mass Transfer The process of heat transfer from one particle of the body to another is called conduction, when the particles of the body Does not affect the intervening medium Do not move actually Affect the intervening medium Move actually Does not affect the intervening medium Do not move actually Affect the intervening medium Move actually ANSWER DOWNLOAD EXAMIANS APP
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