Engineering Thermodynamics For reversible adiabatic process, change in entropy is Zero Maximum Minimum Negative Zero Maximum Minimum Negative 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 Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules All of these 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 Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules All of these The sum of partial pressure of the mixture of two gases is sum of the two ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The oxygen atom is ________ times heavier than the hydrogen atom. 16 32 2 8 16 32 2 8 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The polytropic index (n) is given by log (v1/ v2)/ log (p1/p2) log (p2/ p1)/log (v1/ v2) log (p1p2)/log (v1v2) log [(p1v1)/(p2v2)] log (v1/ v2)/ log (p1/p2) log (p2/ p1)/log (v1/ v2) log (p1p2)/log (v1v2) log [(p1v1)/(p2v2)] 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 All of these 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 When heat is being absorbed, temperature of hot source and working substance should be same All of these 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The ideal efficiency of a Brayton cycle with regeneration, with increase in pressure ratio will Remain unchanged Increase Decrease Increase/decrease depending on application Remain unchanged Increase Decrease Increase/decrease depending on application ANSWER DOWNLOAD EXAMIANS APP
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