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) v2/v1 v1/v2 (v1 + v2)/v2 (v1 + v2)/v1 v2/v1 v1/v2 (v1 + v2)/v2 (v1 + v2)/v1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general law for the expansion or compression of gases, is pv = C pvγ = C pv = m R T pvn = C pv = C pvγ = C pv = m R T pvn = C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The heating of a gas at constant pressure is governed by Boyle's law Charles' law Avogadro's law Gay-Lussac law Boyle's law Charles' law Avogadro's law Gay-Lussac law ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Otto cycle consists of Two constant pressure and two isentropic processes One constant pressure, one constant volume and two isentropic processes Two constant volume and two isothermal processes Two constant volume and two isentropic processes Two constant pressure and two isentropic processes One constant pressure, one constant volume and two isentropic processes Two constant volume and two isothermal processes Two constant volume and two isentropic processes ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In order that a cycle be reversible, following must be satisfied 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 Free expansion or friction resisted expansion/compression process should not be encountered All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A process, in which the gas is heated or expanded in such a way that the product of its pressure and volume remains constant, is called Adiabatic process Polytropic process Isothermal process Hyperbolic process Adiabatic process Polytropic process Isothermal process Hyperbolic process ANSWER DOWNLOAD EXAMIANS APP
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