Engineering Thermodynamics Change in enthalpy of a system is the heat supplied at Constant temperature Constant entropy Constant pressure Constant volume Constant temperature Constant entropy Constant pressure Constant volume ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The value of gas constant (R) in S. I. units is 2.87 J/kgK 287 J/kgK 28.7 J/kgK 0.287 J/kgK 2.87 J/kgK 287 J/kgK 28.7 J/kgK 0.287 J/kgK ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle is also known as Constant pressure cycle Constant temperature and pressure cycle Constant temperature cycle Constant volume cycle Constant pressure cycle Constant temperature and pressure cycle Constant temperature cycle Constant volume cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature, and R = Gas constant) pv = RTm pv = (RT)m pvm = C pv = mRT pv = RTm pv = (RT)m pvm = C pv = mRT 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 All the processes, taking place in the cycle of operation, must be extremely slow All of these The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process The working parts of the engine must be friction free All the processes, taking place in the cycle of operation, must be extremely slow All of these The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The absolute zero temperature is taken as 237°C -273°C 273°C -237°C 237°C -273°C 273°C -237°C ANSWER DOWNLOAD EXAMIANS APP
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