Evidence-Based Reasoning in Redesign of NO2 Syringe Experiment Teaching: Effect of Pressure on Chemical Equilibrium
ZHOU Yao1**, ZHOU Li2, 3, SU Yu-Chan1, REN Sheng-Ying1
1. Shenzhen Foreign Language School,Shenzhen 518000,China; 2. Shenzhen Yantian Institute of Educational Science,Shenzhen 518000,China; 3. College of Education for the Future,Beijing Normal University,Zhuhai 519087,China
Abstract Aiming at the cognitive misconceptions in the syringe experiment of NO2 in senior high school chemistry,this study adopts handheld technology to reconstruct the teaching process. The research findings indicate that traditional teaching tends to simplistically attribute the slow pressure drop after compression to the rightward shift of the chemical equilibrium caused by increased pressure,while neglecting the interference of transient leftward equilibrium shift induced by abrupt temperature rise. By introducing pressure and temperature sensors,conducting controlled experiments and carrying out data comparison,the study corrects the valid evidence,further cultivates students’ awareness of variable control and their ability in evidence-based reasoning,and thus provides a paradigm for transforming textbook experiments into a carrier for higher-order thinking training.
ZHOU Yao, ZHOU Li, SU Yu-Chan, REN Sheng-Ying. Evidence-Based Reasoning in Redesign of NO2 Syringe Experiment Teaching: Effect of Pressure on Chemical Equilibrium[J]. Chinese Journal of Chemical Education, 2026, 47(17): 87-92.
