Molecular Physics | Thermodynamics Answers

In how many ways can 12 books be divided among 4 students so that each student receives 3 books?

One basket contains 5 apples and 2 oranges and a second basket contains 4 apples and 3 oranges. If a fruit is taken from one of the two baskets at random, what is the probability that it is an orange?

high pressure steam enters a turbine with a velocity of 38.0 meters/sec and leaves the exhaust trunk with a velocity of 305 meters/sec. calculate the kinetic energy of the steam in KJ/kg of the steam in KJ/kg and N-m/kg at a. at the entrance to the turbine and b. the exhaust trunk

high pressure steam enters a turbine with a velocity of 125 ft/s and leaves the exhaust trunk of the turbine with a velocity of 1000 ft/s. calculate the kinetic energy in ft-lbf/lb and BTU/ lb at a. at the entrance to the turbine, and b. the exhaust trunk

a boiler feed pump takes water at an elevation of 10 feet above a chosen datum and pumps it into a boiler drum at elevation 30 feet. calculate the change in potential energy of the water from pump to boiler in: a. ft-lb/ lbm b. btu/ lb

a steam turbine receives steam at 1379 kpa gauge and exhausts it to a condenser where the vacuum is indicated as 635 mm of hg by a gauge. for a barometric pressure of 760 mm of Hg. calculate a) the absolute pressure of the turbine inlet, kpa b) the absolute pressure corresponding to the vacuum gauge reading, kpa and mm of hg

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 3000 kJ/kg and the velocity is 60 m/s. At the discharge end, the enthalpy is 2762 kJ/kg. The nozzle is horizontal and there is negligible heat loss from it. Calculate a. 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 the 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 man walking on a light rope stretches out hands horizontally while remaining upright. Explain why he must do this

505g of solid lead at 100 C is heated to its melting point and converted completely to liquid lead. Calculate the amount of thermal energy required for this to happen.

Obtain an expression for mean free path of the molecules in a gas in the first order
approximation. Also, show that mean free path of the molecules in a gas decreases
when all molecules are moving