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Estimate the diffusion coefficient of carbon tetrachloride into air from the following data recorded in a Stefan-tube experiment with carbon tetrachloride ad oxygen: diameter of tube and its length above liquid surface: 1 cm and 15 cm respectively; temperature and pressure maintained: 0°C and 760 mm of mercury; evaporation of carbon tetrachloride: 0.03 gm in 10 Hr; vapour pressure of carbon tetrachloride: 33 mm of mercury.
a rankine power cycle operates with an open feedwater heater. the boiler pressure is 6.0 mpa. a superheater provides a
a pneumatic accumulator arranged to maintain a constant pressure as air enters3 or leaves it is set for 200 psia.
a large two-stage liquid rocket with mass of 30000 kg is to be launched from a sea-level launch pad. the main engine
consider a rankine cycle 100 mw net power vapor power plant with a reheater and regeneration and a single open
a 230-v shunt motor develops a torque of 40 ib-ft when the armature current is 11 a. find the torque developed when the
the rotor shaft of a helicopter drivesd the rotor blades that provide the lifting force and is subjected to a
Air at 308C, 1 bar, 50% relative humidity enters an insulated chamber operating at steady state with a mass flow rate of 3 kg/min and mixes with a saturated moist air stream entering at 58C, 1 bar with a mass flow rate of 5 kg/min. A single mixed ..
Calculate the change in velocity required in changing the position of a satellite in an orbit by 90 degrees. The initial and final orbit is circular around the Earth with a 15000 km radius. Calculate the delta velocity, semi-major axis and period for..
the average grain diameter for some metal alloy was measured as function of time at 650degc which is tabulated below at
Consider the Samuelson model with one good and no production and in which consumers are endowed with one unit of good in youth and none in old age and where their utility functions are u(x0 , x1) = log x0 + (0.5) log x1.
water from a reservoir maintained at 20 deg c is pumped steadily along a horizontal pipe from which it is discharged
Approximate the human form as an unclothed vertical cylinder of 0.3-m diameter and 1.75-m length with a surface temperature of 30°C.
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