Chemical Engineering Thermodynamics Choose the condition that must be specified in order to liquify CO₂ (triple point for CO₂ is - 57°C and 5.2 atm). Pressure must be kept below 5.2 atm Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C Pressure and temperature must be kept below 5.2 atm. and - 57°C respectively Temperature must be kept above - 57°C Pressure must be kept below 5.2 atm Pressure must be kept below 5.2 atm. and temperature must be kept above 57°C Pressure and temperature must be kept below 5.2 atm. and - 57°C respectively Temperature must be kept above - 57°C ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Refrigeration cycle Neither A nor B Violates second law of thermodynamics Involves transfer of heat from low temperature to high temperature Both A and B Neither A nor B Violates second law of thermodynamics Involves transfer of heat from low temperature to high temperature Both A and B ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Fugacity of a component in an ideal gas mixture is euqal to the partial pressure of that component in the mixture. The fugacity of each component in a stable homogeneous solution at contant pressure and temperature __________ as its mole fraction increases. Decreases exponentially Increases Remains constant Decreases Decreases exponentially Increases Remains constant Decreases ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Fugacity and pressure are numerically equal, when the gas is In ideal state At high pressure At low temperature In standard state In ideal state At high pressure At low temperature In standard state ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics A closed system is cooled reversibly from 100°C to 50°C. If no work is done on the system U and S both decreases U is constant but S decreases Its internal energy (U) decreases and its entropy (S) increases U decreases but S is constant U and S both decreases U is constant but S decreases Its internal energy (U) decreases and its entropy (S) increases U decreases but S is constant ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Consider the reaction, C + O₂ ⇋ CO₂ ;ΔH = - 94 kcal. What will be the value of ΔH for the reaction CO₂ → C + O₂? + 94 kcal < -94 kcal -94 kcal > 94 kcal + 94 kcal < -94 kcal -94 kcal > 94 kcal ANSWER DOWNLOAD EXAMIANS APP
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