摘要
探讨中和热实验中不同酸碱的反应对测量结果的影响。结果表明,实验值小于理论值,相同条件下NaOH溶液加入到H2SO4溶液中测得中和热值略大于NaOH加入HAc溶液的中和热值。该实验要将准确浓度的碱液加入到酸液中,并利用酸碱浓度、量热计常数计算中和热值,可减少误差,并应用origin软件绘制工作曲线,使实验数据处理更加简单、精确。
The effect of the different acid-base reactions on the measurement results was discussed in the pa- per. The value of heat of neutralization which NaOH solution was added into the H2SO4 solution was higher than NaOH join the HAc solution under the same conditions. Alkali liquor with accurate concentration was added into acid solution in the experiment. The value of heat of neutralization was obtained by the acid-base concentration and the heatmeter constant. The error of the calculation results could be reduced greatly. The origin software was applied to draw the work curve. It could make the experiment data processing more simple and accurate.
出处
《化学工程师》
CAS
2013年第12期16-18,共3页
Chemical Engineer
基金
吉林师范大学高等教育教学研究项目资助(Jsjy1213)
