Abstract Used the characteristic of photosensitive resistance type photosensitive sensor module, which DO could output high level when the brightness of ambient light did not reach the set threshold value, this paper studied the effect of temperature and concentration on chemical reaction rate of sodium hyposulfite and hydrochloric acid based on a self-made experiment device. Experimental data showed that the accuracy of the device was higher than that of the naked eye.
LI Jia. Inquiry of Effect of Concentration and Temperature on Chemical Reaction Rate Based on a Self-Made Device[J]. Chinese Journal of Chemical Education, 2017, 38(15): 57-59.
