Advanced PlacementCollege / Chemistry

Building a Better Hand Warmer

Students use a temperature sensor to determine the heat of solution of a number of ionic compounds and propose a practical hand warmer design.

This lab incorporates principles of thermochemistry and engineering in the proposed creation of a viable product. Students are expected to use thermodynamic data, material cost and knowledge of chemical toxicity to propose a design for a commercially producible hand warmer.


Student Files

12_ACI_Building_A_Better_Hand_Warmer_S.docx 176.60 KB
12_ACI_Building_A_Better_Hand_Warmer_S.pdf 387.26 KB

Teacher Files

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Standards Correlations

IB Topics AP Topics
5.1; 5.2; 5.3; 15.1 ENE-2.D; ENE-2.E; ENE-2.F

Featured Equipment

Calorimetry Cups

Calorimetry Cups (6)

Set of six styrofoam calorimeter cups for beginning Calorimetry

Temperature Sensor

Wireless Temperature Sensor

The Wireless Temperature Sensor is a general-purpose sensor found in many science labs. With a rugged, waterproof design, and long-lasting battery, students can spend more time collecting data and less time dealing with equipment.

Many lab activities can be conducted with our Wireless, PASPORT, or even ScienceWorkshop sensors and equipment. For assistance with substituting compatible instruments, contact PASCO Technical Support. We're here to help.

Copyright Disclaimer: Section 107 of the Copyright Act of 1976 makes allowance for “fair use” for purposes of teaching, scholarship, education and research. Reproduction under any other circumstances, without the written consent of PASCO, is prohibited.
Source: Lab #12

Advanced Chemistry through Inquiry

Building a Better Hand Warmer