Engineering Thermodynamics The expansion ratio (r) is the ratio of (where v1 = Volume at the beginning of expansion, and v2 = Volume at the end of expansion) (v1 + v2)/v2 v1/v2 (v1 + v2)/v1 v2/v1 (v1 + v2)/v2 v1/v2 (v1 + v2)/v1 v2/v1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics An adiabatic process is one in which The temperature of the gas changes The change in internal energy is equal to the mechanical work done No heat enters or leaves the gas All of these The temperature of the gas changes The change in internal energy is equal to the mechanical work done No heat enters or leaves the gas All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Avogadro’s law 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 All of these The product of the gas constant and the molecular mass of an ideal gas is constant 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 All of these The product of the gas constant and the molecular mass of an ideal gas is constant ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Thermal power plant works on Joule cycle Rankine cycle Carnot cycle Otto cycle Joule cycle Rankine cycle Carnot cycle Otto cycle ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics If heat be exchanged in a reversible manner, which of the following property of the working substance will change accordingly Entropy Temperature Internal energy Enthalpy Entropy Temperature Internal energy Enthalpy ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is 54°C 108°C 654°C 327°C 54°C 108°C 654°C 327°C ANSWER DOWNLOAD EXAMIANS APP
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