Chemical Engineering Thermodynamics A refrigeration cycle is a reversed heat engine. Which of the following has the maximum value of the co-efficient of performance (COP) for a given refrigeration effect? Air refrigeration cycle Carnot refrigeration cycle Vapor compression cycle using expansion engine Vapor compression cycle using expansion valve Air refrigeration cycle Carnot refrigeration cycle Vapor compression cycle using expansion engine Vapor compression cycle using expansion valve ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics In a reversible process DW - dE = Tds Tds - dW + dE >0 Tds = dE + dW DE - dW = Tds DW - dE = Tds Tds - dW + dE >0 Tds = dE + dW DE - dW = Tds ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Cp - Cv = R is valid for __________ gases. Very high pressure Ideal Very low temperature All Very high pressure Ideal Very low temperature All ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics All gases during throttling process at atmospheric temperature and pressure show a cooling effect except N₂ H₂ CO₂ O₂ N₂ H₂ CO₂ O₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics For an isothermal reversible compression of an ideal gas Only ΔH =0 ΔE = ΔH = 0 DQ = dE Only ΔE = 0 Only ΔH =0 ΔE = ΔH = 0 DQ = dE Only ΔE = 0 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics What happens in a reversible adiabatic expansion process? Heating takes place Pressure is constant Temperature is constant Cooling takes place Heating takes place Pressure is constant Temperature is constant Cooling takes place ANSWER DOWNLOAD EXAMIANS APP
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