History Bookmarks PeopleWindowHelp 97% Esa- Mor MasteringPhysics: Ch 21 HW Part

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History Bookmarks PeopleWindowHelp 97% Esa- Mor MasteringPhysics: Ch 21 HW Part 2 Secure https://session.masteringphysics.com/myct/itemview?assignmentProblemID.785971588offset-next Ch 21 HW Part2 Problem 21.43 previous 7 of 10 I next s Problem 21.43 Part A A heat engine that operates on a Camot cycle has an efficiency of 0.460 when its low-temperature reservoir is at 10 C By how many degrees Celsius must you increase the temperature of the high-temperature reservoir to increase the efficiency to 0.600 if you continue to use the same low-temperature reservoir? Express your answer using three significant digits. eC Submit My Answers Give Up

Explanation / Answer

when n = 0.460

n = 1 - (T_cold / T_hot)

0.460 = 1 - (273 + 10) / T_hot

T_hot = 524 K

now n = 0.600

0.600 = 1 - 283/ T'

T' = 707.5 K

increment in temp = T' - T_hot = 183.5 K

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