Question

10£®ÏÂÁÐ˵·¨»ò±íʾ·¨ÕýÈ·µÄÊÇ£¨¡¡¡¡£©

• A£® ÔÚÏ¡ÈÜÒºÖУºH⁺+OH^-¨TH₂O£»¡÷H=-57.3kJ/mol£¬Èô½«º¬0.5mol H₂SO₄µÄŨÁòËáÓ뺬1molNaOHµÄÈÜÒº»ìºÏ£¬·Å³öµÄÈÈÁ¿µÈÓÚ57.3kJ
• B£® ÓÉ4P£¨s£¬ºìÁ×£©¨TP₄£¨s£¬°×Á×£©£º¡÷H£¾0¿ÉÖª£¬°×Á×µÄÈÈÎȶ¨ÐԱȺìÁ×´ó
• C£® ÒÑÖª2H₂£¨g£©+O₂£¨g£©¨T2H₂O£¨g£©£»¡÷H=-483.6kJ•mol^-1£¬ÔòH₂µÄȼÉÕÈȵÈÓÚ241.8 kJ•mol^-1
• D£® ¼ºÖª£ºS£¨g£©+O₂£¨g£©¨TSO₂£¨g£©£»¡÷H₁¼°S£¨s£©+O₂£¨g£©¨TSO₂£¨g£©£º¡÷H₂£¬Ôò¡÷H₁£¼¡÷H₂

Answer 1

·ÖÎö A¡¢Å¨ÁòËáµÄÏ¡Ê͹ý³ÌÊÇ·ÅÈȵĹý³Ì£¬¸ù¾ÝÖкÍÈȵĺ¬ÒåÀ´»Ø´ð£»
B¡¢¸ù¾ÝÈÈ»¯Ñ§·½³ÌʽÅжϺìÁ׺Ͱ×Á×ÄÜÁ¿µÄ¸ßµÍ£¬ÄÜÁ¿Ô½µÍ£¬ÎïÖÊÔ½Îȶ¨£»
C¡¢¸ù¾ÝȼÉÕÈȵĶ¨Ò壬ȼÉÕÈÈÊÇÖ¸Éú³ÉÎȶ¨µÄ»¯ºÏÎ¾Ý´ËÅжϣ»
D¡¢S£¨g£©±äΪS£¨s£©Òª·ÅÈÈ£¬¾Ý´ËÅжϣ®

½â´ð A¡¢Å¨ÁòËáµÄÏ¡Ê͹ý³ÌÊÇ·ÅÈȵĹý³Ì£¬º¬0.5mol H₂SO₄µÄŨÁòËáÓ뺬1mol NaOHµÄÈÜÒº»ìºÏ£¬·Å³öµÄÈÈÁ¿´óÓÚ57.3kJ£¬¹ÊA´íÎó£»
B¡¢¸ù¾ÝÈÈ»¯Ñ§·½³Ìʽ4P£¨ºìÁ×s£©?P₄£¨°×Á×s£©£º¡÷H£¾0 ¿ÉÖª£¬ºìÁ×µÄÄÜÁ¿±È°×Á׵ͣ¬ËùÒÔºìÁ×µÄÄÜÁ¿±È°×Á×Îȶ¨£¬¹ÊB´íÎó£»
C¡¢¸ù¾ÝȼÉÕÈȵĶ¨Ò壬ȼÉÕÈÈÊÇÖ¸Éú³ÉÎȶ¨µÄ»¯ºÏÎÔÚ³£ÎÂÏÂË®ÊÇҺ̬£¬¹ÊC´íÎó£»
D¡¢S£¨g£©±äΪS£¨s£©Òª·ÅÈÈ£¬ËùÒÔS£¨g£©+O₂£¨g£©¨TSO₂£¨g£©£»¡÷H₁¼°S£¨s£©+O₂£¨g£©¨TSO₂£¨g£©£º¡÷H₂£¬ÖÐÇ°Õß·ÅÈȸßÓÚºóÕߣ¬ËùÒÔ¡÷H₁£¼¡÷H₂£¬¹ÊDÕýÈ·£¬
¹ÊÑ¡D£®

µãÆÀ ±¾Ì⿼²é»¯Ñ§ÄÜÓëÈÈÄÜ£¬Ã÷È·ÖкÍÈÈ¡¢·´Ó¦ÈȵĸÅÄî¡¢²»Í¬×´Ì¬ÎïÖÊת»¯¹ý³ÌÖеÄÈÈÁ¿±ä»¯¼°ÎïÖʵÄÄÜÁ¿ÓëÎȶ¨ÐԵĹØϵ¼´¿É½â´ð£¬ÌâÄ¿ÄѶȲ»´ó£®