Chapter 8, Problem 8.108EP

A rigid insulated tank is separated into two rooms by a stiff plate. Room A of 0.5 m 3 contains air at 250Kpa, 300 K and room B is 1 m 3 has air at 200 Kpa, 1000 K. the plate is removed and the air comes to auniform state without any heat transferred. find the final temp and pressure of the room.

An automobile tire is inflated to 105 kPa at 30 deg. C. After being driven the temperature rises to 55 deg. C. Find the final pressure under isochoric process.

The air conditioner in a house or a car has a cooler that brings atmospheric air from 30 degree Celsius to 10 degree Celsius, both state at 101 kPa. For a flow rate of 0.75 kg/s find the rate of heat transfer

A constant-pressure piston/cylinder assembly con- tains 0.2 kg of water as saturated vapor at 400 kPa. It is now cooled so that the water occupies half of the original volume. Find the work and heat trans- fer for the process.

A piston/cylinder has a volume of 0.05 m3 and contains steam at 500 kPa with a quality of 90%. Heat is added at constant pressure until the steam is a saturated vapor. Find the heat and work in kJ.

QUI A piston-cylinder device with a set of stops initially contains 300 g of steam at 1000 Kpa and 400 C. Find the work if the final state 1Mpa and 250 C, and work if the position of the stops corresponds to 60% of the initial volume and also find the temperature at the final state if P-500Kpa Steam 300 g 1000 Kpy 400°C e

Water at 2.5 MPa and 200o C is heated at constant temperature up to a quality of 80%. Find: a. quality of heat received by water b. heat transferred c. work of a nonflow process.

one kg of steam expands isentropically from 25mpa and 300 degrees to 0.95mpa.find the final quality and Wn and Ws

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