Engineering Thermodynamics Which of the following is the correct statement of the second law of thermodynamics? It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy All of these It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy All of these It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The absolute zero temperature is taken as -273°C 273°C 237°C -237°C -273°C 273°C 237°C -237°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency and work ratio of a simple gas turbine cycle are High Very low Very high Low High Very low Very high Low ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics First law of thermodynamics deals with Conservation of energy Conservation of heat Conservation of mass Conservation of momentum Conservation of energy Conservation of heat Conservation of mass Conservation of momentum ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Avogadro’s law The product of the gas constant and the molecular mass of an ideal gas is constant All of these Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules The sum of partial pressure of the mixture of two gases is sum of the two The product of the gas constant and the molecular mass of an ideal gas is constant All of these Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules The sum of partial pressure of the mixture of two gases is sum of the two ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The efficiency of Diesel cycle with decrease in cut-off First decreases and then increases Increases First increases and then decreases Decreases First decreases and then increases Increases First increases and then decreases Decreases ANSWER DOWNLOAD EXAMIANS APP
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