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Water is in a 0.05 m^3 piston-cylinder assembly at 1 MPa, 220 C and the piston is resting on stops. Heat is added until the pressure doubles. At this point the piston movies until the volume increases by 50%.
Determine the total heat transfer in kJ.
For the process where q= 62.5 kj/kg and wkcs= 60 kj/kg determine the energy change if the system mass is 2 kg.
A block of wood floats in water with half its volume below the surface. The specific weight of the wood in lbf/ft3 units is about
for incompressible liquids flow work could usually be neglected in the steady-flow energy equation. in the trans-alaska
a 0.1 m long mullite furnace tube is heated from room temperature 25 degrees celcius to 1000 degrees celcius. assuming
refrigerant-134a is gaining heat at a rate of 4 kws as it passes trough the diffuser. it enters the diffuser as
steam expands in a turbine steadily at a rate of 36048 kgh entering at 8 mpa and 600degc and leaving at 20 kpa as a
A box of clear plastic wrap for household use is polyethylene, C2H4, with density = 0.910 Mg/m3. A box of this product contains 87 ft2 of material (in a roll 304 mm wide by 26.5 m long). If the wrap is 0.2 mil (5.08 micrometers) thick, calculate the ..
neptune has equatorial diameter of 49532 km and mass 1.0247 x 1026 kg. if the planet is modeled as a homogeneous
determine the heat transferred and the work done both in kjkg when saturated water vapor in a closed system is
A fuel consisting of 20% ethanol and 80% isooctane on a molar basis is burned with air in an engine. Write the balanced chemical reaction when this reaction is stoichiometric. What is the air-fuel ratio?
an inventor claims to have developed a device that takes an air stream at 20degc 274 kpa and produces two separate
an instrument having a resonance frequency of 1414 rads with a damping ratio of 0.5 is used to measure a signal of 6000
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