Engineering Answers

12)What is the best arrangement of reactors: PFR, small MFR and large MFR, for reaction orders n>1?_____________

Consider an elementary aqueous reversible reaction system, A↔︎B. The equilibrium constant at 62°C is 11.5. What is the equilibrium conversions at temperature 62°C ?______________

10)In case of endothermic reversible reactions, equilibrium conversion_____________(decreases ,increases) as the temperature increased?

The thermodynamic (reaction) equilibrium constant is function of ______________ (temperature only/pressure only/both temperature and pressure)?

Refrigerant-134a is to be cooled by water in a condenser. The refrigerant enters the condenser with a mass flow rate of 6 kg/min at 1 MPa and 70ºC and leaves at 35°C. The cooling water enters at 300 kPa and 15°C and leaves at 25ºC. Neglecting any pressure drops, determine (a) the mass flow rate of the cooling water required and (b) the heat transfer rate from the refrigerant to water

Consider an ordinary shower where hot water at 60°C is mixed with cold water at 10°C. If it is desired that a steady stream of warm water at 45°C be supplied, determine the ratio of the mass flow rates of the hot to cold water. Assume the heat losses from the mixing chamber to be negligible and the mixing to take place at a pressure of 150 kPa. 

1.    Consider an ordinary shower where hot water at 60°C is mixed with cold water at 10°C. If it is desired that a steady stream of warm water at 45°C be supplied, determine the ratio of the mass flow rates of the hot to cold water. Assume the heat losses from the mixing chamber to be negligible and the mixing to take place at a pressure of 150 kPa. 

A 12 V battery of 0.05-ohm resistance and

another battery of 12 V and 0.075-ohm resistance

supply power to a 2-ohm resistor. What is the

current through the load?