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A thermal reservoir at 1200 K is separated from another thermal reservoir at 300 K by a cylindrical rod insulated on its lateral surfaces. At steady state, energy transfer by conduction takes place through the rod. The rod diameter is 2 cm, the length is L, and the thermal conductivity is 0.4 kW/m ? K. Plot the following quantities, each in kW, versus L ranging from 0.01 to 1 m: the rate of conduction through the rod, the rates of exergy transfer accompanying heat transfer into and out of the rod, and the rate of exergy destruction. Let T0 5 300 K.
it is desired to inflate a baggie with a volume of 904 milliliters by filling it with oxygen gas at a pressure of 0.865
Compare and contrast the heat capacity pcp of common brick, plain carbon steel, engine oil, water, and soil. Which material provides the greatest amount of thermal energy storage per unit volume? Which material would you expect to have the lowest ..
a polymer component that needs to maintain a stress level above 10 mpa for proper functioning of an assembly is
Calcium oxide (CaO) is formed by decomposing limestone (pure CaCO3). In one kiln the reaction goes to 70% completion. What is the composition (by mass) of the solid product (CaO) withdrawn from the kiln? (Hint: there will be two separate product s..
the steel rails of a railroad track are laid in the winter at a temperature of 15 f with gaps of 0.01 ft between the
The following information is known about the steady flow of methane through a horizontal insulated duct: Determine the outlet velocity. What is the stagnation temperature at the outlet?
refrigerant 134a is the working fluid in a solar power plant operating on an ideal rankine cycle. saturated vapor x11.0
The ladder has a uniform weight of 80 lb and rests against the smooth wall at B. If the coefficient of static friction at A is mu(a)= 0.4, determine if the ladder will slip. Take theta= 60 deg
The skid-steer loader has a mass of1.18Mg,and in the position shown. The center of mass is atG1.There is a320-kgstone in the bucket, with center of mass atG2.There is a similar linkage on each side of the loader. Determine the magnitude of the reacti..
1. Define pyrolysis in its most general sense. 2. Pyrolysis products include solids, liquids, and non-condensable gases. Provide a high level summary of the chemical composition of each of these products.
a piston cylinder arrangement has two compartments a and b filled with water as shown in the figurebelow. compartment a
a rigid container of volume v 01 m3 contains 1 kg of water. initially the system is at a temperature of t1 30c.a what
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