subject
Physics, 04.12.2019 01:31 datboyjulio21

An insulated 2-m3 tank is to be charged with r134a from a line flowing the refrigerant at 3 mpa, 90◦c. the tank is initially evacuated, and the valve is closed when the pressure inside the tank reaches 3 mpa. find the mass in the tank and its final temperature

ansver
Answers: 3

Another question on Physics

question
Physics, 21.06.2019 19:00
Modify the equation fδt=δ (mv) to find the force of friction.
Answers: 2
question
Physics, 22.06.2019 02:00
The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s
Answers: 3
question
Physics, 22.06.2019 19:30
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
question
Physics, 22.06.2019 21:40
Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.
Answers: 1
You know the right answer?
An insulated 2-m3 tank is to be charged with r134a from a line flowing the refrigerant at 3 mpa, 90◦...
Questions
question
Mathematics, 04.03.2021 14:00
question
Mathematics, 04.03.2021 14:00
Questions on the website: 13722367