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The energy-separation curve for two atoms, a distance, r, apart is: U(r)= -A*rm+Brn Derive an expression for the equilibrium spacing ro as a function of A, B, m and n.
Calculate the adiabatic flame temperature attained when methane at 298k, is combusted (a) with oxygen in the molar ratio air/CH4 = 9.524. Assume that CO2 and H2O are the products of the combustion. The adiabatic flame temperature is that temperature ..
for each of the following cases determine the internal energy and the enthalpy using the compressed liquid tables and
a block of mass 0.256 kg is placed on top of a light vertical spring of force constant 4 925 nm and pushed downward so
a scale is constructed using the 10-kg mass the 2-kg pan p and the pulley and cord arrangement. cord bca is 2m long. if
Determine the mean effective pressure of an ideal Otto cycle that uses air as the working fluid; it's state at the beginning of compression is 13 psia and 56°F; it's temperature at the end of combustion is 1,525°F; and it's compression ratio is 11. U..
an equiangular strain gage rosette is mounted on a free and unloaded surface of a part made of steel. when loaded the
water is the working fluid in an ideal rankine cycle. the steam enters the turbine at 15 mpa and enters the condenser
An exothermic process occurs uniformly throughout a 10-cm-diameter sphere (k = 300 W/m.K, cp = 400 J/kg.K, ? = 7500 kg/m3), and it generates heat at a constant rate of 1.2 MW/m3. The sphere initially is at a uniform temperature of 20oC, and the exoth..
a turbine is supplied with .6m3s of water from a .3-m diameter pipe the discharge pipe has a .4m diameter. determine
An 8" thick copper bulkhead (kept at 100 C by electrical heat) at the entrance of a flow reactor. The bulkhead is penetrated by a multitude of 0.25" diameter by 8" long cylindrical openings. The heated copper bulkhead is attached to 17" of excellent ..
One side of a copper block 5 cm thick is maintained at 250*C. The other side is covered with a layer of fiberglass 2.5 cm thick. the outside of the fiberglass is maintained at 35*C, & the total heat flow through the copper-fiberglass combination is 5..
assuming that the diameters of 1000 brass plugs taken consecutively from a machine form a normal distribution with
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