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An isolated system consists of a closed copper vessel of mass 0.1 kg, containing 1 kg of liquid water, each initially at 5°C, immersed in 20 kg of liquid water, initially at 20°C. The system is allowed to come to equilibrium. Determine the final temperature in °C, the entropy change for the copper vessel and each of the liquid water masses, and the amount of entropy produced
Hot combustion gases flow into a nozzle at low velocity with an enthalpy of 1,000 kJ/kg at a mass flow rate of 1 kg/s. At the nozzle exit, the enthalpy is reduced by a factor of 2. What is the thrust experienced by the nozzle as a result of the exhau..
Design a signal conditioning system to acquire and store an EGG bio potential. The bandwidth of interest is between 6 and 120 Hz and has peak amplitude of approximately +/-10 mV. Calculate the gain required to optimize you data acquisition into an AD..
in a pharmaceutical plant a copper pipe kc 400 wm.k with inner diameter of 20 mm and wall thickness of 2.5 mm is used
A refrigerator is maintained at 5°C by removing heat from the refrigerated space at 18,000 kJ/hr. The power input to the refrigerator is 1500 W and the surrounding air is at 36° C.
a baloon rises with a constant velocity.a load is tied by a rope to the basket. when the baloon is at altitude h0 the
the displacement of a point on a moving body was measured in each frame of a motion-pcture film. the displacements
A 250mm long brass bar (CTE = 20.5X10-6 / 0 C) is being supported as shown below. Initially, when the temperature is 15 deg C, there is a total clearance of 0.25mm between the right end (left end is secured to the left side support) of the bar and th..
A vertically mounted piston-cylinder device contains 1.5 kg of water and is being heated over a coal burning stove. During the process, 75 kJ of heat is transferred to the water and heat losses from the side walls amount to 9 kJ.
a sample of 10 capacitors was placed on test for 2000 hours. at the end of this period five capacitors had
a proposed steam power plant design consists of an ideal rankine cycle with superheat and reheat. steam enters the
a person weighs 180lbs at sea level. the radius of the earth is 3960 mi. what force is exerted on the person by the
Steam at 300°C and 200 kPa is contained in a rigid tank of volume 0.36 m3. The tank is cooled while 350 kJ of heat are removed. Find the final pressure. Show the process on a P-v diagram
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