Enthalpy Changes

Introduction

The heat absorbed or released during a chemical reaction is equal to the enthalpy change (ΔH) for the reaction, at constant pressure. Calorimetry is the measurement of heat absorbed or released during chemical and physical processes.

Objectives

In the Preliminary Activity, you will gain experience using a Temperature Probe and a calorimeter as you determine the enthalpy change as a hydrochloric acid solution is neutralized by a solution of sodium hydroxide.

After completing the Preliminary Activity, you will first use reference sources to find out more about heat, enthalpy, enthalpy changes, and calorimetry before you choose and investigate a researchable question involving enthalpy changes.

Sensors and Equipment

This investigation features the following Vernier sensors and equipment.

Option 1

Option 2

Additional Requirements

You may also need an interface and software for data collection. What do I need for data collection?