试题与答案

(15分)某同学发现在灼热的煤炭上洒少量水,煤炉中会产生淡蓝色火焰,煤炭燃烧更旺

题型:填空题

题目:

(15分)某同学发现在灼热的煤炭上洒少量水,煤炉中会产生淡蓝色火焰,煤炭燃烧更旺,因此该同学得出结论“煤炭燃烧时加少量水,可使煤炭燃烧放出更多的热量。”(已知煤炭的燃烧热为-393.15 kJ/mol,氢气的燃烧热为-242 kJ/mol,一氧化碳的燃烧热为-283 kJ/mol)

(1)写出该同学看到燃烧现象所涉及到的所有热化学反应方程式;

                                                                    

                                                                       

                                                                     

                                                                                                                              

(2)你认为该同学的结论是否正确,请简要说明理由。                             

答案:

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