Molecular Physics | Thermodynamics Answers

Millikan's oil drop experiment the mass of the oil drops is obtained by observing the terminals Vt of a freely falling drop in the absence of an electric field. under the circumstances the effective weight equals the viscous Force given by stroke's law F= 6ie ΠrVr where Π is 1.8 * 10 - 5 kg/m.s is the viscosity of air and r is 0.65 cm is the of the radius of the drop . Also the actual with Mg =⁴÷² pie r³ density gram. must be corrected for the buoyant force of the air this is done by replacing density with density -densityA .density is 9.20 x 10² kg/m³ the density of the oil and density is 1.29 kg/m³ density of air with this premier a show that charge drop is given by

A nozzle is a device for increasing the velocity of a steadily flowing stream. At the inlet to a certain nozzle, the enthalpy of the fluid passing is 3025 kJ/kg and the velocity is 60 m/s. At the discharge end, the enthalpy is 2790 kJ/kg. The nozzle is horizontal and there is negligible heat loss from it.
a)Find the velocity of the fluid at the exit.

(b the rate of flow of fluid when the inlet area is 0.1 m^2 and the specific volume at inlet is 0.19 m^3/kg,

(c) the exit area of the nozzle when the specific volume at the nozzle exit is 0.5 m^3/kg

A cube of green jelly rests on a table. The jelly is pushed laterally with a
force of 30 N at it top surface and changes into a parallelogram shape
instead of sliding, with a lateral displacement of 0.125 m. Calculate the
shear strain induced in the cube of jelly

In a router for scattering experiment and alpha particle is positive charge 2 is directed towards a gold necklace with charms 79-80 alpha particle has a kinetic energy of 5.0 even went very far from the nucleus as even the Golden close to be fixed and space determine the distance of the closest approach note 8.99 * 10 is 4 and 9 Newton per hour metre square column column

feed water enters a boiler drum at 700 psia, 300°F and a specific volume of 0.0174 ft^3/lb. steam leaves the superheater of the boiler at 600 psia, 550°F and a specific volume of 0.8794 ft^3/lb. calculate: a. the flow work in BTU/lb associated with the water entering the boiler drum, b. the flow in BTU/lb associated with the steam leaving the superheater

a reversible non flow process of a perfect gas proceeds from a pressure of 400 psia to a pressure of 100 psia with a corresponding increase in specific volume of the gas from 0.518ft^3/lb to 2.072 ft^3/lb. during the process the internal energy remains constant at 95.76 BTU/lb. calculate the: a. the enthalpy of the gas at 400 psia and 0.518 ft^3/lb in BTU/lb b. the change of enthalpy between the initial and final states

One pound of saturated steam at 689.5 kPa is compressed in a reversible non-flow process from the specific volume of 0.2768 m?/kg to a specific volume of 0.001107 m3/kg. If the pressure remains constant at 689.5 kPa and the internal energy decreases 1878.2 kJ/kg during the process, determine how much heat will be transferred and whether it will be added to our abstracted from the working substance .

steam at pressure of 50 psia and a temperature of 281°F has an internal energy of 109.6 BTU/lb. at these conditions the specific volume of the steam is 8.518 ft^3/lb. determine the enthalpy of the steam in BTU/lb

a working substance enters a thermodynamics steady flow system with the following conditions: p1= 20 psia, v1= 11.7 ft^3/lb, u1=101.6 BTU/lb, v1=150 ft/sec. the working substance leaves the system with the following conditions: p2=25 psia, v2=10.3 ft^3/lb, u2=149.0 BTU/lb, v2=500 ft/sec. Changes in elevation through the system are negligible, and 10 BTU/lb transferred heat is added to the fluid as it passes through the system. Determine the work done on or by the fluid, BTU/lb

The power delivered by an auxiliary turbine is 500,000 Btu /hr when the steam flow is 4000 lb/hr. Find a. the specific work in ft·lbf/lb b. The power delivered, Hp