Engineering Thermodynamics The hard coke is obtained when carbonization of coal is carried out at 900° to 1100°C 700° to 900°C 300° to 500°C 500° to 700°C 900° to 1100°C 700° to 900°C 300° to 500°C 500° to 700°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is The working parts of the engine must be friction free The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these All the processes, taking place in the cycle of operation, must be extremely slow The working parts of the engine must be friction free The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these All the processes, taking place in the cycle of operation, must be extremely slow ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The polytropic index (n) is given by log (p1p2)/log (v1v2) log (v1/ v2)/ log (p1/p2) log (p2/ p1)/log (v1/ v2) log [(p1v1)/(p2v2)] log (p1p2)/log (v1v2) log (v1/ v2)/ log (p1/p2) log (p2/ p1)/log (v1/ v2) log [(p1v1)/(p2v2)] ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Kelvin Planck's law deals with Conversion of work into heat Conservation of heat Conversion of heat into work Conservation of work Conversion of work into heat Conservation of heat Conversion of heat into work Conservation of work ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general law for the expansion or compression of gases, is pv = m R T pv = C pvγ = C pvn = C pv = m R T pv = C pvγ = C pvn = C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Entropy change depends on Mass transfer Thermodynamic state Change of temperature Heat transfer Mass transfer Thermodynamic state Change of temperature Heat transfer ANSWER DOWNLOAD EXAMIANS APP
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