已知:
①CH4(g)+H2O(g)?CO(g)+3H2(g)△H1=+206.4kJ/mol
②CO(g)+H2O(g)?CO2(g)+H2(g)△H2=-41.0kJ/mol
③CH4(g)+2H2O(g)?CO2(g)+4H2(g)△H3
請(qǐng)回答:
(1)反應(yīng)①屬于吸熱吸熱(填“吸熱”或“放熱”)反應(yīng).
(2)反應(yīng)①消耗8g CH4 (g)時(shí),△H=+103.2+103.2kJ/mol.
(3)反應(yīng)②生成2mol H2(g)時(shí),△H=-82.0-82.0 kJ/mol.
(4)反應(yīng)③的△H3=+165.4+165.4 kJ/mol.
【考點(diǎn)】反應(yīng)熱和焓變.
【答案】吸熱;+103.2;-82.0;+165.4
【解答】
【點(diǎn)評(píng)】
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發(fā)布:2024/6/27 10:35:59組卷:17引用:4難度:0.5
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