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Air undergoes an isentropic process from P_1 = 100 kPA and T_1 = 300 K to a final state where the temperature is 700 K. Assuming an ideal gas, find P_2 using both the ideal gas tables and assuming a constant specific heat ratio at the average temperature.
R-410a flows at 0.3 Ibm/s in a refrigeration system. The R-410a is throttled from 60 F. 270 psia to 45 psia. Determine the temperature and quality of the R-410a after throttling.
estimate the nominal size of the smallest sae grade 1 standard unc bolt that will not yield under a tightening torque
a car radiator has an effective heat transfer area of ??15 m2. cooling water temperature is 85 c in and the 60 c out of
Consider a Refrigerant 22 at 0oC that is going through a phase change from the saturated liquid to saturated vapor. Using T-dS equations, calculate the entropy change between these two phases.
water vapor h2o is heated during a steady-flow process at 1 atm from 298 to 2400 k at a rate of 0.6 kgmin. determine
Energy balance, property tables, phase changes. Consider water in a pot on an alien planet. You will the pot with 1.002 L (.001002 m3) of water initially at 20°C and 75 kPa (their atmospheric pressure is different than ours). How much mass is in the ..
A non-reacting gaseous mixture with molar analysis of 74.3% N2, 4.3% O2, 7.1% CO2, and 14.3% H2O(g) enters a counter-flow heat exchanger at 800?F and 1 atm with a volumetric flow rate of 5 ft3/s (State 1) and exits at 200?F (State 2). Calculate the m..
air flows through a nozzle at high velocities such that compressible flow effects are important. the air exits the
the question is during the compression of 0.6 kg of gas in a cylinder an amount of work equal to 80 kj is supplied to
the principal plane stresses and associated strains in a plane at a point are s1 36 ksi s2 16 ksi e1 1.0210-3 and e2
a wire of radius r length l and initial temperature ti is cooled by a fluid of temperature tf at time t0. the heat
a boy throws a ball straight up from the top of a 12m tower. if the ball falls past him 0.75 s later determine the
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