Engineering, 13.09.2019 23:30, S28462182

One pound of air at 100℉ is mixed with another pound of air at 40℉. the mixing process is constant pressure with constant specific heat. calculate: a. the final mixture temperature, ℉; ( 70℉ ) b. the change of entropy for the lb of gas originally at 100℉, btu/lb-°r; ( -0.01321 btu/lb°r ) c. the change of entropy for the lb of gas originally at 40℉, btu/lb-°r; ( +0.01398 btu/lb-°r ) d. the net change of entropy for the final mixture, ( +0.00077 btu/lb-°r )

Answers: 2

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, viicborella

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Answers: 1

continue

Engineering, 04.07.2019 18:10, skpdancer1605

Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2

Answers: 3

continue

Engineering, 04.07.2019 18:10, siri5645

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

continue

Engineering, 04.07.2019 18:10, genyjoannerubiera

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)

Answers: 1

continue

Do you know the correct answer?

One pound of air at 100℉ is mixed with another pound of air at 40℉. the mixing process is constant p...