Ask Question
21 March, 05:06

A well insulated and perfectly sealed room is installed with 4 HP fan to circulate air for 1.5 hours. Determine the increase in internal energy of the air answer is 1.61 x10^7 J

+4
Answers (1)
  1. 21 March, 05:24
    0
    "Increase in internal energy = energy consumed by fan " as the room is perfectly insulated and sealed.

    energy consumed by fan = power x time

    power of fan = 4HP = 4 x 745.7 W = 2982.8 W

    time = 1.5 hours = 1.5 x 60 x 60 = 5400 s

    energy consumed by fan = 2982.8 x 5400 = 16107120 J = 1.61x10^7 J

    Increase in internal energy is 1.61x10^7 J
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A well insulated and perfectly sealed room is installed with 4 HP fan to circulate air for 1.5 hours. Determine the increase in internal ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers