Physics, 05.10.2019 00:30 shayhiddinovxasan93
What is the change in internal energy if 60 j of heat are added to a system and the system does 40 j of work on its surroundings? use u = q - w.
Answers: 1
Physics, 21.06.2019 20:30
Air enters a compressor operating at steady state at 1.05 bar, 300 k, with a volumetric flow rate of 93 m3/min and exits at 12 bar, 400 k. heat transfer occurs at a rate of 15.5 kw from the compressor to its surroundings. assuming the ideal gas model for air neglecting kinetic potential energy effects, determine the power in put in kw.
Answers: 2
Physics, 22.06.2019 07:00
Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.
Answers: 3
Physics, 22.06.2019 12:00
Explain what happens at the saturation point when adding salt to water at room temperature.
Answers: 3
Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
What is the change in internal energy if 60 j of heat are added to a system and the system does 40 j...
Mathematics, 30.01.2020 23:47
Mathematics, 30.01.2020 23:47
Mathematics, 30.01.2020 23:47
Mathematics, 30.01.2020 23:47
Health, 30.01.2020 23:47
Geography, 30.01.2020 23:47
Social Studies, 30.01.2020 23:47
Mathematics, 30.01.2020 23:47
History, 30.01.2020 23:47
English, 30.01.2020 23:48