熱力學 >_<
2014-04-05 6:41 pm
A heat engin operates in a Carnot cycle between T=80.0 and T=350.It absorbs 21000J of energy per cycle from the hot reservoir.The duration of each cycle is 1.0s. What is the mechanical power output of this engine? (95台聯大)
回答 (10)
2014-04-06 3:08 am
✔ 最佳答案
A heat engin operates in a Carnot cycle between Tl=80.0 and Th=350.It absorbs Qh=21000J of energy per cycle from the hot reservoir.The duration of each cycle is t=1.0s. What is the mechanical power output of this engine? (95台聯大)Ans:W=Qh(1-Tl/Th)......from textbook=21000(1-(80+273)/(350+273))=21(kJ)(623-353)/623=9.101(kJ)Power=W/t=9.101/1=9.101(kw)
2014-05-08 3:51 pm
2014-05-04 5:11 pm
2014-05-02 3:06 pm
2014-05-01 4:56 pm
2014-04-30 10:22 pm
2014-04-29 3:48 pm
2014-04-28 6:33 am
2014-04-27 10:36 pm
2014-04-06 10:50 am
收錄日期: 2021-04-30 18:39:59
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140405000015KK01894