當前位置:中文谷 >

關於490kJm的百科

    (1)已知:①CH3OH(g)+H2O(g)===CO2(g)+3H2(g) ΔH=+49.0kJ/m...
  •     (1)已知:①CH3OH(g)+H2O(g)===CO2(g)+3H2(g) ΔH=+49.0kJ/m...

  • 問題詳情:    (1)已知:①CH3OH(g)+H2O(g)===CO2(g)+3H2(g)ΔH=+49.0kJ/mol②CH3OH(g)+3/2O2(g)===CO2(g)+2H2O(g)ΔH=-192.9kJ/mol由上述方程式可知:CH3OH的燃燒熱________(填“大於”“等於”或“小於”)192.9kJ/mol。已知水的氣化熱爲44kJ/mol。則表示*氣燃燒熱的熱化學方程式...
  • 15469