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1.Using the equation PV = nRT and the units given below, make the equation dimensionally consistent. Use units Pa, cubic meters, mols, and kelvin for your final answer:
pbar-psi, vbar-cubic chains, nbar-mol, rbar-liters*mmHg/k/mol, tbar-degrees Rankine.
2.A 1.10% Carbon hypoeutectoid plain carbon steel is slowly cooled from 900 degrees C to just slighty below 723 degrees C calculate the weight percent proeutectoid cementite present in this steel.
The tank is insulated on the outside and the partition between the two sections is also an insulator. The partition can withstand a pressure differential across it of 400 kPa, before rupturing.
Given a water that contains 80 mg/L of glucose (C6H12O6) and 18 mg/L of ammonia (NH3): a. What is the carbonaceous oxygen demand (in mg 02/L) b. What is the nitrogenous oxygen demand (in mg 02/L)
a wheel tractor scraper weighing 100 tons is being operated on a haul road which is a rutted dirt roadway (little maintanence) this tractor is traveling empty down a 5% slope. what is the total resistance
A piston-cylinder device contains 0.2kg of water initially at 800 kPa and 0.06m^3. Now 200 kJ of heat is transferred to the water while its pressure is held constant. Determine the final temperature of the water.
Runoff from a storm flows into a reservoir with a surface area of 20.0 ha at a constant rate. The reservoir level is observed to rise at 1 mm per minute when water is being released through the dam at a rate of 10 m3 per second.
A 1.20-m thick strata of sand has a void ratio of 1.81. A contractor passes a vibratory roller over this extra strata, which densifies it and reduces its void ratio to 1.23. Compute its new thickness.
HZ Wireless must rebuild a cell tower recently destroyed by a tornado. A tower made of normal steel (NS) will cost $30,000 to construct and should last 15 years. Maintenance will cost $1000 per year.
An existing power plant has been found to produce SO2 concentration of 20µg/m3 at a distance of 800m directly downwind from the stack when the wind is 4m/s from the north during a class C stability situation.
An 180 m long 100 mm diameter compressed air pipeline is to be run from a stationary compressor to an air-track drill which requires a flow of 780 l/sec. The pipeline contains 2 large radius bends (R=2d) ,and 4 half closed gate valves.
Water at 60 degrees Fahreneit flows at 3 cfs through a 150-ft-long duct of 6 in X 9 in cross section. The pressure at the inlet end is 15 psig, and at the outlet, 20 ft higher than the inlet, it is 4 psig.
A W24X94 beam on a 6 ft span underpins a column that brings 110 kips dead load and 280 kips live load to its top flange at a location 2.5 ft from the left support.
A brass cube (E=100 GPa, v = 0.25(Poisson's ratio)) is 100 mm long per side. A compressive force of 100kN is applied to one side, while a tension force of 200 kN is applied to a second side.
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