Chemical Engineering Thermodynamics The theoretical minimum work required to separate one mole of a liquid mixture at 1 atm, containing 50 mole % each of n- heptane and n- octane into pure compounds each at 1 atm is -2 RT ln 0.5 2 RT 0.5 RT -RT ln 0.5 -2 RT ln 0.5 2 RT 0.5 RT -RT ln 0.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C. 327 300 540 270 327 300 540 270 ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Normal temperature and pressure (N.T.P.) corresponds to 0°C and 1 kgf/cm² 0°C and 760 mm Hg 20°C and 760 mm Hg 15°C and 760 mm Hg 0°C and 1 kgf/cm² 0°C and 760 mm Hg 20°C and 760 mm Hg 15°C and 760 mm Hg ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics Enthalpy changes over a constant pressure path are always zero for __________ gas. An easily liquefiable Any A real A perfect An easily liquefiable Any A real A perfect ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same. Work Kinematic viscosity None of these Temperature Work Kinematic viscosity None of these Temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Engineering Thermodynamics It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions. The amount of work needed is independent of path More information is needed to conclude anything about the path dependence or otherwise of the work needed Work alone can not bring out such a change of state The amount of work needed is path dependent The amount of work needed is independent of path More information is needed to conclude anything about the path dependence or otherwise of the work needed Work alone can not bring out such a change of state The amount of work needed is path dependent ANSWER DOWNLOAD EXAMIANS APP
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