Öп¼ÎïÀí¿¼µãÊáÀí£º±ÈÈÈÈÝ¿¼µãÊáÀí

±à¼­£ºsx_wangha

2017-10-28

±ÈÈÈÈÝ¿¼µãÊáÀíÒ»ÎÄΪ¿¼ÉúÅóÓÑÃÇÌṩÁ˱ÈÈÈÈÝ¿¼µã¡¢±ÈÈÈÈݶ¨ÒåÒÔ¼°±ÈÈÈÈÝÊÔÌâ¼°´ð°¸¡£±ÈÈÈÈÝÊÇÎïÖʵÄÒ»ÖÖÌØÐÔ£¬´óСÓëÎïÌåµÄÖÖÀࡢ״̬Óйأ¬ÓëÖÊÁ¿¡¢Ìå»ý¡¢Î¶ȡ¢Ãܶȡ¢ÎüÈÈ·ÅÈÈ¡¢ÐÎ×´µÈÎ޹ء£ÏêÇéÈçÏ£º

±ÈÈÈÈÝ¿¼µãÊáÀí

(1)¶¨Ò壺

±ÈÈÈÈݼò³Æ±ÈÈÈ£¬µ¥Î»ÖÊÁ¿µÄijÖÖÎïÖÊζÈÉý¸ß1¡æÎüÊÕµÄÈÈÁ¿(»ò½µµÍ1¡æÊͷŵÄÈÈÁ¿)½Ð×öÕâÖÖÎïÖʵıÈÈÈÈÝ;

(2)µ¥Î»£º

±ÈÈȵĵ¥Î»ÊǸ´ºÏµ¥Î»£¬J/(kg¡¤¡æ)£¬¶Á×÷¡°½¹Ã¿Ç§¿ËÉãÊ϶ȡ±£¬Ë®µÄ±ÈÈÈÈÝΪcË®=4.2¡Á10 J/(kg¡¤¡æ);

(3)¼ÆË㹫ʽ£º

Q=cm¦¤t£¬QÎü=cm¦¤t=cm(tÄ©- t³õ)£¬Q·Å=cm(t³õ-tÄ©);

(4)±ÈÈÈÈݵÄÀí½â£º

±ÈÈÈÈÝÊÇÎïÖʵÄÒ»ÖÖÌØÐÔ£¬±ÈÈÈÈÝÒ»°ã²»ËæÖÊÁ¿¡¢ÐÎ×´µÄ±ä»¯¶ø±ä»¯£¬¶ÔͬһÎïÖÊ£¬±ÈÈÈÈÝÓëÎï̬ÓйØ(ÀýÈçË®µÄ±ÈÈÈÓë±ùµÄ±ÈÈȲ»Í¬);

(5)Ë®µÄ±ÈÈÈÈݽϴóÕâÒ»ÐÔÖʵÄÓ¦Óãº

¢Ù¶ÔÆøÎµÄÓ°Ïì--Ò»ÌìÖÐÑØº£µØÇøÎ¶ȱ仯С£¬Äڽζȱ仯´ó;

¢ÚÈȵºÐ§Ó¦µÄ»º½â--³ÇÊÐÖн¨Ë®¿â»ò½¨Â̵Ø;

¢ÛË®ÀäϵͳµÄÓ¦ÓÃ--ÈÈ»ú(ÀýÈçÆû³µµÄ·¢¶¯»ú£¬·¢µç³§µÄ·¢µç»úµÈ)µÄÀäȴϵͳҲÓÃË®×öΪÀäÈ´Òº;(4)ÈÈˮȡů--¶¬¼¾¹©ÈÈÓõÄÉ¢ÈÈÆ÷¡¢Å¯Ë®´ü¡£

±ÈÈÈÈݼÆËã

ÉèÓÐÒ»ÖÊÁ¿ÎªmµÄÎïÌ壬ÔÚijһ¹ý³ÌÖÐÎüÊÕ(»ò·Å³ö)ÈÈÁ¿¦¤Qʱ£¬Î¶ÈÉý¸ß(»ò½µµÍ)¦¤T£¬Ôò¦¤Q/¦¤T³ÆÎªÎïÌåÔڴ˹ý³ÌÖеÄÈÈÈÝÁ¿(¼ò³ÆÈÈÈÝ)£¬ÓÃC±íʾ£¬¼´C=¦¤Q/¦¤T¡£ÓÃÈÈÈݳýÒÔÖÊÁ¿£¬¼´µÃ±ÈÈÈÈÝc=C/m=¦¤Q/m¦¤T¡£¶ÔÓÚ΢С¹ý³ÌµÄÈÈÈݺͱÈÈÈÈÝ£¬·Ö±ðÓÐC=dQ/dT£¬c=1/m*dQ/dT¡£Òò´Ë£¬ÔÚÎïÌåζÈÓÉT1±ä»¯µ½T2µÄÓÐÏÞ¹ý³ÌÖУ¬ÎüÊÕ(»ò·Å³ö)µÄÈÈÁ¿Q=¡Ò(T2,T1)CdT=m¡Ò(T2,T1)cdT¡£Ò»°ãÇé¿öÏ£¬ÈÈÈÝÓë±ÈÈÈÈݾùΪζȵĺ¯Êý£¬µ«ÔÚζȱ仯·¶Î§²»Ì«´óʱ£¬¿É½üËÆµØ¿´Îª³£Á¿¡£

ÓÚÊÇÓÐQ=C(T2-T1)=mc(T2-T1)¡£ÈçÁîζȸıäÁ¿¦¤T=T2-T1£¬ÔòÓÐQ=cm¦¤T¡£ÕâÊÇÖÐѧÖÐÓñÈÈÈÈÝÀ´¼ÆËãÈÈÁ¿µÄ»ù±¾¹«Ê½¡£ÔÚÓ¢ÎÄÖУ¬±ÈÈÈÈݱ»³ÆÎª£ºSpecific Heat Capacity(SHC)¡£ÓñÈÈÈÈݼÆËãÈÈÄܵĹ«Ê½Îª£ºÄÜÁ¿=ÖÊÁ¿¡Á±ÈÈÈ¡Áζȱ仯¿É¼òдΪ£ºEnergy=SHC¡ÁMass¡ÁTemp Ch£¬

Óë±ÈÈÈÏà¹ØµÄÈÈÁ¿¼ÆË㹫ʽ£ºQ=cm¦¤T ¼´QÎü(·Å)=cm(T³õ-TÄ©) ÆäÖÐcΪ±ÈÈÈ£¬mΪÖÊÁ¿£¬QΪÄÜÁ¿ÈÈÁ¿¡£ÎüÈÈʱΪQ=cm¦¤TÉý(ÓÃʵ¼ÊÉý¸ßζȼõÎïÌå³õÎÂ)£¬·ÅÈÈʱΪQ=cm¦¤T½µ(ÓÃʵ¼Ê³õμõ½µºóζÈ)¡£»òÕßQ=cm¦¤T=cm(TÄ©-T³õ)£¬Q>0ʱΪÎüÈÈ£¬Q<0ʱΪ·ÅÈÈ¡£±ÈÈÈÈݵļÆË㹫ʽһ°ãΪ±ÈÈÈÈÝ¿¼µãÊáÀí¡£QÎü=cm(t-to)Q·Å=cm(to-t)c±íʾ±ÈÈÈÈÝ.m±íʾÎïÌåµÄÖÊÁ¿to±íʾÎïÌåµÄ³õÎÂt±íʾÎïÌåµÄÄ©ÎÂ(¡÷t:ÎïÌå±ä»¯Î¶ȣ¬¼´t-t0)ÕâÊÇÓÃÀ´¼ÆËãÎïÌåζÈÉý¸ßʱµÄ¹«Ê½¡£ÈôÎïÌå½µµÍʱ£¬ÔòÊÇÓÃÎïÌåµÄ³õζȼõȥĩζȡ£¼´¡£±ÈÈÈÈݵļÆË㹫ʽҲд×÷±ÈÈÈÈÝ¿¼µãÊáÀí

±ÈÈÈÈÝÁ·Ï°Ìâ

µã»÷²é¿´¸½¼þ£º±ÈÈÈÈÝÁ·Ï°Ìâ.doc

±ÈÈÈÈÝ¿¼µãÊáÀí

²éÔÄÁËÕâÆªÎÄÕºó£¬ÄúÊÇ·ñ»¹Ïë²éÔÄÖп¼ÎïÀí¸´Ï°Ö¸µ¼ÄØ£¿¹Ø×¢Öп¼ÎïÀíרÀ¸²éÔÄ

¡ñ Ïà¹ØÍÆ¼ö¸ü¶à>>

ÃâÔðÉùÃ÷

¾«Æ·Ñ§Ï°Íø(51edu.com)ÔÚ½¨Éè¹ý³ÌÖÐÒýÓÃÁË»¥ÁªÍøÉϵÄһЩÐÅÏ¢×ÊÔ´²¢¶ÔÓÐÃ÷È·À´Ô´µÄÐÅÏ¢×¢Ã÷Á˳ö´¦£¬°æÈ¨¹éÔ­×÷Õß¼°Ô­ÍøÕ¾ËùÓУ¬Èç¹ûÄú¶Ô±¾Õ¾ÐÅÏ¢×ÊÔ´°æÈ¨µÄ¹éÊôÎÊÌâ´æÓÐÒìÒ飬ÇëÄúÖÂÐÅqinquan#51edu.com(½«#»»³É@)£¬ÎÒÃÇ»áÁ¢¼´×ö³ö´ð¸´²¢¼°Ê±½â¾ö¡£Èç¹ûÄúÈÏΪ±¾Õ¾ÓÐÇÖ·¸ÄúÈ¨ÒæµÄÐÐΪ£¬Çë֪ͨÎÒÃÇ£¬ÎÒÃÇÒ»¶¨¸ù¾Ýʵ¼ÊÇé¿ö¼°Ê±´¦Àí¡£

¡ó ÈÈµã¹Ø×¢
¡ð ¸÷Ê¡Öп¼ÈÈѶ