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Nitrogen is throttled at a rate of 0.9 kg/s from a pressure of 10 bar to 1.5 bar.
Outlet diameter is 10 cm. If outlet temperature was 37oC, calculate velocity at
outlet and deduce temperature at inlet. Find work and heat exchanged per
second during this process.
.Air at 1 bar, 27oC and a rate of 0.4 kg/s enters a 10 cm diameter duct where it
is heated at constant pressure to reach 727oC at exit. Calculate outlet velocity
and deduce heat and work exchanged per second.
.A 100-liter rigid tank containing Butane (C4H10) initially at 1 bar and 30oC, is
connected to a line carrying Butane flowing at 5 bar and 40oC, until pressure in
the tank is equal to that of the line. During the process, tank is cooled by
extracting 42kJ of heat. Considering specific heat ratio of Butane is 1.33, find
temperature and mass of Butane in the tank at end of filling.
Given : Vector A = "No. of letters of your First Name" units @ N 75° E Vector B = "No. of letters of your Last Name" units @ N 25° E Vector C = "No. of letters of your Middle Name" N @ 45° east of south Find the and direction of the resultant vector
Heat is added to 200 kg of ice at 0 ºC until dry steam at 100 ºC is obtained.
The specific heat capacity of water is 4200 J kg‑1 K‑1, the specific latent heat of steam is 2260 kJ kg-1 and the specific latent heat of ice is 335 kJ kg-1.
Determine the total amount of heat energy (in MJ) added to the ice.
a. 452MJ
b. 520MJ
c. 603MJ
d. 84MJ
3. Given : Vector A = "No. of letters of your First Name" units @ N 75° E Vector B = "No. of letters of your Last Name" units @ N 25° E Vector C = "No. of letters of your Middle Name" N @ 45° east of south Find the and direction of the resultant vector
A machine gun fires 50gm bullets at a speed of 1000m/s. The gunner, holding the machine gun in his hands, can exert an average force of 180N against the gun. Determine the maximum number of bullets he can fire per minute
determine the velocity of steam flowing in a circular pipe with a diameter of 4 inches and volume flow rate of 4 liters per second.
A large open storage tank is filled with water. A small hole is punctured in the side of the tank at a depth in below the surface of the water. At what speed will water flow out of the hole
Two containers contain two volume of same kind of ideal gas, the pressure and volume of one volume is 20.64 Pa, 2V0, the pressure
and volume of another volume is 43.21 Pa and V0, the two container of gas are in thermal equalibrium with constant temperarture T0
external hot reserviour, the two containers are connected by a pipe which is initially blocked, when the block is removed and and
two volume of gases mix, which of the following values is closest to the final equilibrium pressure?
(A) 41.28
(B) 28.16
(C) 31.92
(D) 35.69
(E) All the above answers are incorrect
