Reference no: EM13705888
Using the steam tables (water), find the specified property data at the indicated states. In each case, place the state on sketches of p-v and T-v diagrams.
a) For p = 3 bar,? = 0.5m3 /kg , determine T ( oC) and u(kJ/kg) .
b) For T = 320 oC,? = 0.03m3 /kg , determine p(MPa) and u(kJ/kg) .
c) For p = 28MPa, T = 520 oC , determine ? (m3 /kg) and h(kJ/kg) .
d) For T = 10oC,? = 100m3 /kg , determine p(kPa) and h(kJ/kg) .
e) For p = 4MPa, T = 160 oC , determine ? (m3 /kg) and u(kJ/kg).
Pitot -static tube to measure the wind speed
: A meteorologist uses a pitot -static tube to measure the wind speed in a tornado. Based on the damage caused by the storm, the tornado is rated as EF5 on the enhanced Fujita Scale. This means that the wind speed is estimated to be in the range of 261..
|
Four weights is to pass through the center of the raft
: Three children are standing on a 5×5-m raft. The weights of the children at Points A, B, and C are 375 N, 260 N, and 400 N, respectively. If a fourth child of weight 425 N climbs onto the raft, determine where she should stand if the other children r..
|
Determine the reading on the pressure gauge
: A 400 L rigid tank contains 5 kg of air at 25 C. Determine the reading on the pressure gauge if the atmospheric pressure is 97 kPa.
|
Calculate the change in free-energy
: Calculate the change in free-energy associated with the formation of a critical spherical nucleus in pure liquid nickel that is 200 ºC under cooled. Properties of Nickel: Heat of Fusion 2660 J/cm3; Surface Energy 255x10-7 J/cm2 ; Freezing Temperatur..
|
Find the specified property data at the indicated states
: Using the steam tables (water), find the specified property data at the indicated states. In each case, place the state on sketches of p-v and T-v diagrams.
|
Pressure-volume coordinates
: A closed system consisting of 8.25 lb of a gas undergoes a process during which the relation between pressure and volume is pV^n = constant. The process begins with p1 = 18 lbf/in^2 , v1 = 1.25 ft^3 /lb and ends with p2 = 53 lbf/in^2 , v2 = 0.5 ft^3 ..
|
A vessel with a frictionless piston contains
: A vessel with a frictionless piston contains 1 ft^3 of a gas at 200 psia. The piston is held in position by applying an external force. Calculate the amount of work done if:
|
Air is heated in an adiabatic piston cylinder device
: Air is heated in an adiabatic piston cylinder device at a constant pressure of 100 kPa. The initial specific volume of air is 1 m3/kg. If the volume of the cylinder is increased by 50% in this process, determine the specific entropy change of air in ..
|
Required per unit mass for the isothermal compression
: Find the theoretical work required per unit mass for the isothermal compression of 800 m3 air from 100KPa to 900 KPa in closed system.
|