A rigid 10-L vessel initially contains a mixture of liquid water and vapor at 100C with...

A rigid 10-L vessel initially contains a mixture of liquid water and vapor at 100C with 12.3 percent quality. The mixture is then heated until its temperature is 180C. Calculate the heat transfer required for this process.

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samet mamat answered 3 years ago

A closed, rigid tank contains a two-phase liquid–vapor mixture of Refrigerant 22 initially at -20°C with...

A closed, rigid tank contains a two-phase liquid–vapor mixture of Refrigerant 22 initially at -20°C with a quality of 47.50%. Energy transfer by heat into the tank occurs until the refrigerant is at a final pressure of 6 bar. a) Determine the final temperature, in °C. b) If the final state is in the superheated vapor region, at what temperature, in °C, does the tank contain only saturated vapor?

Two kg of water exist initially as a vapor and liquid at 90°C in a rigid...

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A well-insulated rigid tank contains 3kg of saturated liquid vapour-mixture of water at 250kpa. Initially, three...

A well-insulated rigid tank contains 3kg of saturated liquid vapour-mixture of water at 250kpa. Initially, three quarters of the mass is in the liquid phase. An electric resistance heater placed in the tank is turned on and kept on until all the liquid in the tank is vaporizer. Assuming the surroundings to be 25 degrees Celsius and 100kpa Determine: a) The exergy destruction and b) The second law efficiency for the process.

A rigid tank contains a saturated liquid-vapour mixture of water in an equilibrium state. The volume...

A rigid tank contains a saturated liquid-vapour mixture of water in an equilibrium state. The volume of the tank is 110 m3 and the temperature of the water in the tank is 115°C. In the tank, 70% of the mass is liquid and 30% of the mass is vapour. Please calculate the total mass of water in the tank.

A vessel initially contains 5.0 kg of liquid water and 2.0 kg of ice at 0...

A vessel initially contains 5.0 kg of liquid water and 2.0 kg of ice at 0 C. Energy is added until the ice has just melted. The temperature at the boundary where heat transfer occurs is taken to be the system temperature during the process. The enthalpy of melting ice is 333.5 kJ/kg. Consider the following processes used to melt the ice. a.) Heat is added to from the environment at 20 C. Determine the entropy flux and the total...

A vessel contains a mixture of equimolar liquid benzene and liquid toluene that is in equilibrium...

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A 500 L rigid tank contains a saturated water mixture at 200 C as shown: the...

A 500 L rigid tank contains a saturated water mixture at 200 C as shown: the mixture is 40% liquid and 60% vapour by volume (State 1). A valve on top of the tank is opened, and saturated vapor is slowly withdrawn from the tank. Heat transfer occurs during this process such that the temperature in the tank remains constant. The valve is closed when 50 % of the initial mass is withdrawn from the tank (State 2) (a) Determine...

A rigid, well-insulated tank contains a two-phase mixture consisting of 0.005 ft3 of saturated liquid water...

A rigid, well-insulated tank contains a two-phase mixture consisting of 0.005 ft3 of saturated liquid water and 2.7 ft3 of saturated water vapor, initially at 14.7 lbf/in.2 A paddle wheel stirs the mixture until only saturated vapor remains in the tank. Kinetic and potential energy effects are negligible. For the water, determine the amount of energy transfer by work, in Btu.

One kilogram of Refrigerant 134a vapor initially at 2 bar and 20°C fills a rigid vessel....

One kilogram of Refrigerant 134a vapor initially at 2 bar and 20°C fills a rigid vessel. The vapor is cooled until the temperature becomes -24°C. There is no work during the process. Let To = 20°C, po = 0.1 MPa and ignore the effects of motion and gravity. 2. For the refrigerant, determine the change in exergy, in kJ. Note: for part 1: q=-98.086kj please find part two- the change in exergy in kj

2. A tank initially contains 120 L of pure water. A salt mixture containing a concentration of...

2. A tank initially contains 120 L of pure water. A salt mixture containing a concentration of 1.5 g/L enters the tank at a rate of 2 L/min, and the well-stirred mixture leaves the tank at the same rate. Find an expression for the amount of salt in the tank at any time t. Also, find the limiting amount of salt in the tank as t →∞.

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