Question 1 Two gas tanks are connected by a cylindrical tube, of length 20 cm and radius 1.5 mm. As shown in the diagram, a valve, which allows ideal gases to be exchanged between the two tanks, is positioned between the tanks and is initially closed. Both gases are initially at 25 °C. 0.002 m³ Valve 0.001 m³ 4/5 1/5 101 kPa 10 kPa The valve is now opened and gas is allowed to flow in the tube at constant temperature. What is the pressure in the 0.002 m³ tank when the valve is left open and equilibrium is reached? Give your answer to two significant figures and in kPa.

Answer the following questions regarding vessels:

6 In a boiler test, the following observations wcre made: 358 A Text Book of Thermal Engineering Feed water temperaturç e= 12" C; Pressure of steam = 11 bar; Dryness fraction of steam 095 Mass of coal burnt 300 kg/h, Calorific value of coal 32 000 kJkg of coal; Mass of water supplied to boiler in 7 hrs 14 min= 14 625 kg. The mass of w ster in the boiler at the end of the test was less than that at the commencement by 900kg. Calculate I. Actual evaporation per kg of coal: 2 Equivalent evaporation from and at 100 C per kg [Ans. 7 15 kg, 8 33 kg: 58.75 % of coal ; and 3. Thermal efficiency of the boiler

Please try to give accurate solution ASAP..

can you show me how did it get the universal gas constant (R)?

Q2 (a) Water and alcohol are mixed in a y-duct as shown in Figure Q2 (a). Determine the density of the alcohol as the average density of the mixture of alcohol and water is 920 kg/m³. The volume flow rates of water and alcohol are 0.1 m³/s and 0.2 m³/s respectively. (3 marks) Water and alcohol mix Water Alcohol Figure Q2 (a)

Determine the type of steam, given: Temperature: 156°C Internal Energy: 1550 kJ/kg O Wet Vapor O Saturated Liquid O Saturated Vapor

Refrigeration

ans: 0.01925kg, 0.7123kg, 1.886kPa Use gas laws

Combination of available data for transition and turbulent flow in smooth as well as rough pipes into the following implicit relation known as the_________________.   Group of answer choices   a. Bernoulli’s equation b. Continuity equation c. Colebrook’s equation d. Ideal gas equation