We discuss the use of a simple piece of equipment made of a 50 mL syringe attached to a 2 mL graduated pipet to demonstrate Boyle’s law and Charles’s law. A plot of the hydrostatic pressure against the reciprocal of the volume of the gas read from the equipment is linear as discussed in the paper and gives the atmospheric pressure at the y-intercept. A plot of the volume of the gas against the Celsius temperature of the gas is also linear as discussed in the paper and gives the absolute zero at the x-intercept. This plastic “high-precision syringe” is simple, disposable, and inexpensive (<1 USD per set) but can yield a high correlation coefficient (class median r² ≥ 0.95) and accurate results (class median within 1% from P_atm = 101 kPa or within 5 °C from −273 °C). These results are achieved because changes in gas volume are read precisely on the graduated lines of the pipet, and the change is significant because of the amount of gas in the syringe. In addition to the two gas laws, this experiment can also be used to teach glassware scale reading, error analysis, use of a spreadsheet program, and statistical analysis.

中文翻译：

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通过使用新颖，廉价的设备产生准确结果的实验​​来教授波义耳定律和查尔斯定律

我们讨论了一个简单的设备的使用，该设备由连接到2 mL刻度移液管的50 mL注射器制成，以证明博伊尔定律和查尔斯定律。如本文所讨论的，静水压力与从设备读取的气体量的倒数的关系图是线性的，并给出了y截距处的大气压。气体体积与气体摄氏温度的关系图也是线性的，如本文所述，在x轴截距处绝对为零。这种塑料“高精度注射器”是简单，一次性的，并且便宜的（每套<1个美元），但可以得到高相关系数（类中位数- [R ²为1％以内≥0.95）和准确的结果（类中位数P_atm = 101 kPa或-273°C在5°C以内）。之所以能够获得这些结果，是因为在吸液管的刻度线上精确地读取了气体量的变化，并且由于注射器中的气体量，该变化非常明显。除了这两种气体定律，该实验还可以用于教授玻璃器皿的刻度尺读取，误差分析，电子表格程序的使用和统计分析。