subject
Engineering, 06.05.2020 05:38 cowgyrlup124

A closed, rigid tank whose volume is 1.3 m3 contains 3.22 kg of air with the initial conditions of 260 K and 185 kPa. A paddle wheel within the tank does work on the air inside the tank, and 45 kJ of energy escapes through the walls by heat transfer at an average temperature of 285 K. Assuming that air in the tank is an ideal gas with a gas constant of Rair, 1. Determine the final temperature of the air, in K. 2. Determine the heat transfer between the tank contents and the surroundings, in KG.

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
Answers: 1
question
Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
Answers: 1
question
Engineering, 04.07.2019 19:10
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
question
Engineering, 04.07.2019 19:10
The air in an automobile tire with a volume of 0.015 m3 is at 32ยฐc and 140 kpa gage. determine the amount of air that must be added to raise the pressure to the recommended value of 206 kpa gage. assume the atmospheric pressure to be 128 kpa and the temperature and the volume to remain constant.[r-0.287 kj/kgk]
Answers: 3
You know the right answer?
A closed, rigid tank whose volume is 1.3 m3 contains 3.22 kg of air with the initial conditions of 2...
Questions
Questions on the website: 13722363