Engineering, 25.02.2020 02:27 joe805
" A 4-m × 5-m × 6-m room is to be heated by a baseboard resistance heater. It is desired that the resistance heater be able to raise the air temperature in the room from 5 to 25°C within 17 min. Assuming no heat losses from the room and an atmospheric pressure of 100 kPa, determine the required power of the resistance heater. Assume constant specific heats at room temperature. "
Answers: 2
Another question on Engineering
Engineering, 03.07.2019 15:10
Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?
Answers: 3
Engineering, 04.07.2019 18:10
Fluids at rest possess no flow energy. a)- true b)- false
Answers: 3
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
You know the right answer?
" A 4-m × 5-m × 6-m room is to be heated by a baseboard resistance heater. It is desired that the re...
Questions
English, 04.02.2020 18:40
English, 04.02.2020 18:40
Mathematics, 04.02.2020 18:40
Mathematics, 04.02.2020 18:40
Computers and Technology, 04.02.2020 18:40
Mathematics, 04.02.2020 18:40
Mathematics, 04.02.2020 18:40
Arts, 04.02.2020 18:43
Biology, 04.02.2020 18:43
Mathematics, 04.02.2020 18:43
Mathematics, 04.02.2020 18:43
History, 04.02.2020 18:43
