Chemical Engineering Thermodynamics A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system Its internal energy (U) decreases and its entropy (S) increases U decreases but S is constant U is constant but S decreases U and S both decreases Its internal energy (U) decreases and its entropy (S) increases U decreases but S is constant U is constant but S decreases U and S both decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In any spontaneous process, the __________ free energy decreases. Neither A nor B Both of the listed here Gibbs Helmholtz Neither A nor B Both of the listed here Gibbs Helmholtz ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Heat is added at constant temperature in an ideal __________ cycle. None of these Stirling Rankine Brayton None of these Stirling Rankine Brayton ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about 8.5 4.5 3.5 0.5 8.5 4.5 3.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The main feature of Carnot refrigeration cycle is that, it Transfers heat from high temperature to low temperature Does not need the addition of external work for its functioning None of these Accomplishes the reverse effect of the heat engine Transfers heat from high temperature to low temperature Does not need the addition of external work for its functioning None of these Accomplishes the reverse effect of the heat engine ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Which of the following is not an extensive property? None of these Free energy Entropy Refractive index None of these Free energy Entropy Refractive index ANSWER DOWNLOAD EXAMIANS APP
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