A student determined that 2.5g of CaCO3 are formed by the re
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A student determined that 2.5g of CaCO3 are formed by the reaction CaO+CO2=CaCO3.What quantity of heat should be released.
正确答案是-4.5KJ
不好意思,补充下数据。molar enthalpy of formation
CaCO3 -1207.6KJ
CaO -634.9KJ
正确答案是-4.5KJ
不好意思,补充下数据。molar enthalpy of formation
CaCO3 -1207.6KJ
CaO -634.9KJ
生成2.5g碳酸钙此反应需要多少热量!你去找本化学书在后面的附表查到相关物质的焓值就可以算出来了,2.5g碳酸钙就是0.025mol乘上碳酸钙的摩尔生成焓,就可以了!得到答案为负值,说明本反应需要吸热!
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