Engineering Thermodynamics A closed system is one in which Mass crosses the boundary but not the energy Neither mass nor energy crosses the boundaries of the system Mass does not cross boundaries of the system, though energy may do so Both energy and mass cross the boundaries of the system Mass crosses the boundary but not the energy Neither mass nor energy crosses the boundaries of the system Mass does not cross boundaries of the system, though energy may do so Both energy and mass cross the boundaries of the system ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to 1 γ ∝ 1 γ ∝ 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 product of the gas constant and the molecular mass of an ideal gas is constant The sum of partial pressure of the mixture of two gases is sum of the two All of these Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules The product of the gas constant and the molecular mass of an ideal gas is constant The sum of partial pressure of the mixture of two gases is sum of the two All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A process, in which the temperature of the working substance remains constant during its expansion or compression, is called Adiabatic process Polytropic process Hyperbolic process Isothermal process Adiabatic process Polytropic process Hyperbolic process Isothermal process ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In order that a cycle be reversible, following must be satisfied Free expansion or friction resisted expansion/compression process should not be encountered All of these When heat is being absorbed, temperature of hot source and working substance should be same When beat is being rejected, temperature of cold source and working substance should be same Free expansion or friction resisted expansion/compression process should not be encountered All of these When heat is being absorbed, temperature of hot source and working substance should be same When beat is being rejected, temperature of cold source and working substance should be same ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One kg of ethylene (C2H4) requires 2 kg of oxygen and produces 22/7 kg of carbon dioxide and ___ kg of water or steam. 11/4 11/7 7/4 9/7 11/4 11/7 7/4 9/7 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS