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2 kg of water at 10oC and atmospheric pressure are placed in a pressure cooker and heated until the water boils at 140oC. The pressure relief valve then opens and allows steam (vapour) to escape. Five minutes later, the mass of water remaining in the cooker is 1.8 kg. Find i) The maximum pressure shown by a gauge on the cooker ii) The quantity of heat transferred to the water when it just starts to boil (ignore heat capacity of cooker) iii) Flow rate of heat to water during evaporation.
an electric power plant uses solid waste for fuel in the production of electricity. the cost y in dollars per hour to
a cylindrical wheel billet 1ft. in diameter and 3ft. long initially at 1000 f is quenched in oil. assume that the
liquid waterh2o at 200 kpa and 20oc is heated in a chmaber by mixing it with a steam h20 at 200 kpa and 150oc. the
measuring fracture toughnessthe aim of this demonstration is to use measurements of the load required to propagate a
If the truck starts from rest when xD is zero, and moves forward with a constant acceleration of aD = 5 m/s2, determine the speed of the block at the instant xD = 3 m.
a rectactangular surface is placed in a vertical position in fresh water with its top and bottom edges horizontal. if
an air-standard dual cycle has a compression ratio of 18 and a cutoff ratio of 1.1. the pressure ratio during
the carnot cycle is defined as having a certain specific first step the isothermal expansion of a gas. can a carnot
the coefficients of static friction and kinetic friction 0.4, 0.30 between all surface of contact. determine the force p for which motion of the 30kg block is impending if cable AB is attached is shown and removed.
on a given day a barometer at the base of the washington monument reads 29.97 in. of mercury. what would the barometer
The piston is then move in,and heat is rejected bt the air reversibly at constant pressure until the volume is the same as it was initially.Calculate the net heat flow and the overall change of entropy.sketch the process of p-V and T-s diagram.
You are to supply a design for an engine room crane which will provide maintenance support for the main engine. Your design should include the rails the crane will sit on.
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