有镁热反应吗——由一道高考化学题引起的思考

doi:10.13884/j.1003-3807hxjy.2018100097

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Abstract The standard molar free energy change, standard molar reaction heat and standard molar entropy change at 298 K of metallothermic reductions, such as 2Al+Fe2O3=2Fe+Al2O3, 3Mg+B2O3=2B+3MgO and Na+KCl=K↑+NaCl, were calculated approximately, and to judge whether these reactions can take place and the contribution of enthalpy change and entropy change to the reactions.

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	XING Tai-Yu
	WAN Ru-Kai
	YANG Jun-Jun

Key words： college entrance examination thermite reaction metallothermic reduction enthalpy-driven entropy-driven

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XING Tai-Yu, WAN Ru-Kai, YANG Jun-Jun. Is There Magnesium Thermal Reaction: Reflections on Chemistry Question in College Entrance Examination[J]. Chinese Journal of Chemical Education, 2020, 41(7): 92-95.