Chemical Engineering Thermodynamics Gibbs-Duhem equation States that n₁dμ₁ + n₂dμ₂ + ....njdμj = 0, for a system of definite composition at constant temperature and pressure None of these Applies only to binary systems Finds no application in gas-liquid equilibria involved in distillation States that n₁dμ₁ + n₂dμ₂ + ....njdμj = 0, for a system of definite composition at constant temperature and pressure None of these Applies only to binary systems Finds no application in gas-liquid equilibria involved in distillation ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an ideal gas, the internal energy depends upon its __________ only. Temperature Volume Pressure Molecular size Temperature Volume Pressure Molecular size ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance. Heating Simultaneous pressure & temperature change Both B and C Cooling Heating Simultaneous pressure & temperature change Both B and C Cooling ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is More pronounced Data insufficient, can't be predicted Equal Less pronounced More pronounced Data insufficient, can't be predicted Equal Less pronounced ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by(where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) μ° + RT ln f μ° + R/T lnf μ°+ R lnf μ° + T lnf μ° + RT ln f μ° + R/T lnf μ°+ R lnf μ° + T lnf 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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