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44.8

22.4

3R¡£ÊÔ¼ÆËã¸÷2C B 1 A 2 273

546

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״̬1 V1 = 22.4dm3£¬T1 = 273 K

nRT1 P1 = = 101.32 kPa

V1״̬2 V2 = 22.4dm3£¬T2 = 546 K

nRT2

P2 = = 202.64 kPa

V2

״̬3 V3 = 44.8 dm3£¬T3 = 546 K

nRT3

P3 = = 101.32 kPa

V3

A¹ý³Ì¿ÉÄæµÈÈݹý³Ì QA =

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22QC =

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1.5nACp,m(A)(40?t)?1.5nACp,m(A)(30?t)?0½âÖ®µÃ t = 35oC ½«BÓëC»ìºÏÖÕ̬ζÈΪ35oC

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V£¨cm3£©=1002.935+51.832nB+0.1394nB2

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