Physics, 31.07.2019 22:30 freyaocain
Suppose a heat source generates heat at a rate of 87.0 w (1 w = 1 j/s). how much entropy does this produce per hour in the surroundings at 27.4 â°c? assume the heat transfer is reversible.
Answers: 1
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Physics, 22.06.2019 14:30
Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
Answers: 1
Physics, 22.06.2019 15:00
Greg drew a diagram to compare two of the fundamental forces. which labels belong in the areas marked x, y and z? gravitational force electromagnetic force x. attractive y repulsive z: infinite range x: infinite range y attractive z. repulsive x. always attractive y: infinite range z: attractive or repulsive x. attractive or repulsive y infinite range z: always attractive
Answers: 2
Physics, 22.06.2019 18:50
8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.
Answers: 3
Suppose a heat source generates heat at a rate of 87.0 w (1 w = 1 j/s). how much entropy does this p...
Computers and Technology, 23.11.2020 22:20
History, 23.11.2020 22:20
Mathematics, 23.11.2020 22:20
History, 23.11.2020 22:20
Computers and Technology, 23.11.2020 22:20
English, 23.11.2020 22:20
Social Studies, 23.11.2020 22:20
History, 23.11.2020 22:20
Mathematics, 23.11.2020 22:20
Mathematics, 23.11.2020 22:20
English, 23.11.2020 22:20
Social Studies, 23.11.2020 22:20
Physics, 23.11.2020 22:20