混合式教学在反应速率和活化能测定中的应用及体会

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Application and Impression of Online and Offline Mixed Teaching in Determination of Reaction Rate and Activated Energy

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doi:10.3866/PKU.DXHX202012029

Abstract:

Determination of chemical reaction rate and activated energy is a traditional college chemistry experiment, which includes lots of theories, data treatment and graphic plotting. In order to shorten the lecture time, make students understand the theories well and master the computer technology of data treatment and graphing, an online and offline teaching model was applied. This model has gained the approval from the students and teachers, improved the teaching qualities, and achieved good results.

Key words: Reaction rate, Activated energy, Computer processing technology, Online and offline, Mixed teaching

Xiuqiong Zeng, Jiqing Cai, Xiaofei Xu, Yuxiu Wei, Ning Li. Application and Impression of Online and Offline Mixed Teaching in Determination of Reaction Rate and Activated Energy[J].University Chemistry, 2021, 36(7): 2012029.

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0.20 mol·L^-1 KI/ mL

0.10 mol·L^-1 K₂S₂O₈/ mL

0.010 mol·L^-1 Na₂S₂O₃/ mL

0.2%淀粉溶液/ mL

0.20 mol·L^-1 KNO₃/ mL

0.10 mol·L^-1 K₂SO₄/ mL