An Economical, Safe, and Sturdy Student Calorimeter

Abstract

Replacing the styrofoam, coffee cup calorimeter with the Snak Jar.

Guided Discovery: Law of Specific Heats

“…Besides being more efficient, this gives the student an immediate visual comparison of two metals. Thermos brand "Snak Jars" (15) were used as calorimeters. A 3/16′′ hole was drilled in the lid 3/ 4′′ from the edge for the PSL temperature probe.…”

Do-it-yourself methodology for calorimeter construction based in Arduino data acquisition device for introductory chemical laboratories

“…Last decades, several authors reported calorimeters made from alternative materials. Stankus et al, constructed calorimeters with polypropylene Tri-Pour beakers for determining the enthalpy of solution of sodium hydroxide (Stankus and Caraway, 2011), Ruekberg reported calorimeters made from Thermos brand snack jars (Ruekberg, 1994), Kavanagh et al, used calorimeters made from glass beakers (Kavanagh et al, 2008); Bopegedera et al reported the construction of a Coffee cup calorimetry, for using a Vernier temperature probe and LoggerPro data collection software Vernier Software & Technology (Vernier, 2019), although these are viable alternatives, the initial cost of their construction could be prohibitive for institutions with limited budgets (Bopegedera and Perera, 2017).…”

Matching Five White Solids to Common Chemicals: A Dissolution Calorimetry and Acid–Base Titration Experiment

“…Students need to think both inductively and deductively in the process of matching the physical and chemical properties of the given chemicals to the reference values that they have found in the literature. The current experiment can be considered as a stepping stone for students to move forward to a more advanced procedure of structural elucidation by spectroscopic techniques. There are usually three approaches to calorimetry experiments, measuring the heat of reaction, − the heat of dissolution, ,− and the heat capacity. ,− Only the first is considered a chemical property due to chemical reactions, but the latter two may be regarded as a physical property of a material. The accuracy of this experiment depends on the magnitude of the temperature change, the precision of the thermometer, and the ability of the calorimeter to insulate heat transfer between the system of interest and the environment.…”

“…There are usually three approaches to calorimetry experiments, measuring the heat of reaction, − the heat of dissolution, ,− and the heat capacity. ,− Only the first is considered a chemical property due to chemical reactions, but the latter two may be regarded as a physical property of a material. The accuracy of this experiment depends on the magnitude of the temperature change, the precision of the thermometer, and the ability of the calorimeter to insulate heat transfer between the system of interest and the environment.…”