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An ideal gas contained in a piston-cylinder assembly is compressed isothermally in an internally reversile process.
a)determine if the entropy change of the gas is greater than, equal to or less than zero.justify your answer.
b) determine if the same change of state, the entropy change for an irreversible process is greater than, equal to or less than part a)
nitrogen initially occupying 3.5 ft3 at 87 psia 480degf undergoes in internally reversible expansion during which pv1.2
a boat carrying passengers weighs 1200lbs. if the boat is moving in a circular path with a radius of 40ft and a
for the wide-flange beam with loading shown determine the largest load p that can be applied knowing that the maximum
10.0 kgm of air is contained in a cylinder by a free-floating frictionless piston. initially the air is at 27 c and
steam is to be condensed in the condenser of a steam power plant at a temperature of 50 degrees celsius with cooling
drinking water at 10oc for an office complex must be pumped along a horizontal section of pvc pipe 50 m long at 2 ms.
A thin electric heater is wrapped around a rod of diameter 3 cm. The heater dissipates energy uniformly at a rate of 1300 W/m. Air at 20°C flows normal to the rod with a velocity of 15.6 m/s. Determine the steady state surface temperature of the h..
in boulder dam 2000 cubic feet per second of water flows through each of the pipes called penstocks that lead down to
two kilograms of zinc at 500c and 1 atmosphere is contained in a thermally insulated jacket. the system is compressed
Please find the mass of gasoline fuel injected into each cylinder in each working cycle.
1 a 10-cm long and 20-cm wide circuit board is covered with 100 closely spaced chips each generating heat at a rate of
the rigid bar ac is supported by a pin at f and two identical links bd and ce. the length between point a and b is 22
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