Engineering, 28.07.2020 03:01 calwhite216
[zero, extensive, boundary, volume, temperature, isobaric, adiabatic, isothermal, closed,
intensive, path dependent, cyclic, state, on]
1. The space separating the system from the surroundings is called the . 2. Temperature is kept constant in an process
3. In an isothermal process remains constant.
4. In an adiabatic process is not exchanged between the system and the
surroundings.
5. In process heat is not exchanged between the system and surroundings.
6. An property is independent of the amount of substance.
7. An property depends on the amount of substance.
8. A property is independent of the path
9. Change of internal energy is in a cyclic process
10. In an isochoric process is constant.
11. Pressure is constant in an process
12. Mass cannot be exchanged between the system and surroundings in a system
13. Work is a property
14. The change of a state property in a process must be zero.
15. The sign of work is positive when work is done the system.
Answers: 2
Engineering, 04.07.2019 18:10, Strick1530
Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.
Answers: 2
Engineering, 04.07.2019 18:10, mamasbug4285
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
Engineering, 04.07.2019 18:20, luisgonz5050
Find the kinematic pressure of 160kpa. for air, r-287 j/ kg k. and hair al viscosity of air at a temperature of 50°c and an absolute (10 points) (b) find the dynamic viscosity of air at 110 °c. sutherland constant for air is 111k
Answers: 3
[zero, extensive, boundary, volume, temperature, isobaric, adiabatic, isothermal, closed,
intensive...
Mathematics, 02.04.2020 20:05
Mathematics, 02.04.2020 20:05