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Hydrogen is contained in a piston-cylinder device at 14.7 psia and 15 ft3. At this state, a linear spring (Flux) with a spring constant of 15,000 lbf/ft is touching the piston but exerts no force on it. The cross-sectional area of the piston is 3 ft2. Heat is transferred to the hydrogen, causing it to expand until its volume doubles. Determine (a) the final pressure, (b) the total work done by the hydrogen, and (c) the fraction of this work done against the spring. Also, show the process on a P-V diagram.
A cylindrical furnace is 0.4 m long and 0.4 m in diameter. The two ends are maintained at 600 K and 700 K with emissivities of 0.6 and 0.7 respectively. The lateral surface has an emissivity of 0.8 and a temperature of 800 K. Determine the net radioa..
Estimate the mass of the gas in the tank in kg assuming the gas behaves as an ideal gas. If the gas warms up to 35 deg C as it sits in the sun all day, what would the pressure rise to?
at a point on the free surface of a machine part the strains are ex1200 mu ey300mu yxy700 mu. use mohrs circle to
a pitot-static tube used to measure air velocity is connected to a differential pressure gage. if the air temperature
calculate the vertical displacement at D and the horizontal displacement at Free-Body Diagram should be recalculated with P and Q.
Azeotrope of chloroform–methanol. Vapor–liquid equilibrium data at 101.3 kPa are given for the chloroform–methanol system on p. 13-11 of Perry’s Chemical Engineers’ Handbook, 6th ed. From these data, prepare plots like Figures 4.6b and 4.6c. From the..
Compute the first energy level (in eV) for a particle trapped in a 0.1 nm region. Assume the mass of the particle is equal to 0.511 MeV/c^2
a retarding force is applied to a body moving in a straight line so that during an interval of its motion its speed u
refrigerant 134a at -10degc 1.4 bar and a mass flow rate of 280 kghr enters an insulated compressor operating at steady
the uniform 100-kg beam is freely hinged about its upper end a and is initially at rest in the vertical position with
1. a 500 ml cylindrical mug is filled level with the top of the mug with 90degc water. what is the water level relative
a 5-lb roast initial at 70degf is placed in an oven at 350degf. you may assume the heat transfer coefficient is 2.5
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