Enthalpy changes and calorimetry

3 quick checks≈2% of the testFoundational

Reading is free. Sign in to tick off lessons, keep your place and track your mastery.

By the end you’ll be able to

Define and use the terms exothermic, endothermic, enthalpy change, standard enthalpy change, standard enthalpy change of reaction, formation, combustion and neutralisation.
Represent and interpret enthalpy changes on labelled energy level diagrams, including activation energy and the sign of $\Delta H$.
Calculate heat energy changes from experimental data using $q=mc\Delta T$ and relate this to molar enthalpy changes.

0% read

Explain assumptions and sources of error in calorimetry, including heat loss, incomplete combustion and the use of water to model the surroundings.

Evaluate the reliability and accuracy of calorimetry data and suggest improvements to apparatus or method.

This lesson hasn’t been written yet

Chemistry lessons are written from the official syllabus the first time a learner opens them, then saved for everyone. Sign in and this one is written for you in a minute or two. It’s free.

Sign in Create a free account