Question

ÒÑ֪ijÌõ¼þÏ£¬ºÏ³É°±·´Ó¦µÄÊý¾ÝÈçÏ£º
N₂£¨g£©£«3H₂£¨g£©2NH₃£¨g£©
ÆðʼŨ¶È/mol¡¤L^-1      1.0     3.0         0.2
2sĩŨ¶È/mol¡¤L^-1     0.6     1.8         1.0
4sĩŨ¶È/mol¡¤L^-1     0.4     1.2         1.4
µ±Óð±ÆøŨ¶ÈµÄÔö¼ÓÀ´±íʾ¸Ã·´Ó¦µÄËÙÂÊʱ£¬ÏÂÁÐ˵·¨ÖдíÎóµÄÊÇ£¨  £©

A£®2sÄ©°±ÆøµÄ·´Ó¦ËÙÂÊ£½0.4mol¡¤£¨L¡¤s£©£­1

B£®Ç°2sʱ¼äÄÚ°±ÆøµÄƽ¾ù·´Ó¦ËÙÂÊ£½0.4mol¡¤£¨L¡¤s£©£­1

C£®Ç°4sʱ¼äÄÚ°±ÆøµÄƽ¾ù·´Ó¦ËÙÂÊ£½0.3mol¡¤£¨L¡¤s£©£­1

D£®2s¡«4sʱ¼äÄÚ°±ÆøµÄƽ¾ù·´Ó¦ËÙÂÊ£½0.2mol¡¤£¨L¡¤s£©£­1

Answer 1

A

AÏî²»·ûºÏƽ¾ù·´Ó¦ËÙÂʵĶ¨Ò壬2sÄ©µÄËÙÂÊÊÇ˲ʱËÙÂÊ£¬ÔÚ±¾ÌâÌõ¼þÏÂÊDz»ÄÜÇó½âµÄ£»°±ÆøÔÚ0¡«2sʱ¼äÄÚ£¬Å¨¶ÈµÄÔö¼ÓֵΪ1.0mol/L£­0.2mol/L£½0.8mol/L£¬¹ÊÇ°2s°±ÆøµÄƽ¾ù·´Ó¦ËÙÂÊ£½0.8mol/L¡Â2s£½0.4mol/£¨L¡¤s£©£¬BÏîÕýÈ·£»Ç°4sÄÚ°±ÆøµÄƽ¾ù·´Ó¦ËÙÂÊ£½£¨1.4£­0.2£©mol/L¡Â4s£½0.3mol/£¨L¡¤s£©£¬¹ÊCÏîÕýÈ·£»2s¡«4sʱ¼äÄÚ°±ÆøµÄƽ¾ù·´Ó¦ËÙÂÊ£½£¨1.4£­1.0£©mol/L¡Â£¨4£­2£©s£½0.2mol/£¨L¡¤s£©£¬¹ÊDÏîÕýÈ·¡£