subject
Chemistry, 20.08.2021 14:10 vaizen9621

Cho chu trình làm lạnh dùng máy nén hơi môi chất là R134a. Hơi bão hoà khô R134a vào máy nén có i=390 (kJ/kg), ra khỏi máy nén có i=410 (kJ/kg). Trước van tiết lưu có i=220 (kJ/kg). Xác định năng suất lạnh riêng và hệ số làm lạnh của chu trình?.

ansver
Answers: 2

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 08:30, dyanaycooper13
Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution
Answers: 1
image
Chemistry, 22.06.2019 23:40, sydneykated
The kw for water at 0 °c is 0.12× 10–14 m2. calculate the ph of a neutral aqueous solution at 0 °c.
Answers: 2
image
Chemistry, 23.06.2019 06:30, tdahna0403
The molar mass of cu is 63.55 g/mol. the number of grams of cu produced in this reaction is
Answers: 3
image
Chemistry, 23.06.2019 07:00, MathChic68
Why do the strengths of london (dispersion) forces generally increase with increasing molecular size? choose one: a. heavier atoms have stronger attractions for each other than lighter atoms. b. dispersion forces are all equal in magnitude; there is no size dependence. c. dispersion forces arise from the attraction between the nuclei of atoms, and larger molecules have larger nuclei. d. dispersion forces arise from dipoles caused by the electron distribution being distorted. larger molecules have more electrons and, therefore, more distortions and a bigger force. e. dispersion forces depend on distance. larger molecules are farther apart and so the forces are smaller.
Answers: 2
You know the right answer?
Cho chu trình làm lạnh dùng máy nén hơi môi chất là R134a. Hơi bão hoà khô R134a vào máy nén có i=39...

Questions in other subjects:

Konu
Mathematics, 14.01.2020 15:31