# Enthalpy Changes and Calorimetry

Central concept: **Enthalpy Changes**

## Connections

- Enthalpy Changes (defines) -> Enthalpy
- Enthalpy Changes (includes) -> Molar Enthalpy
- Enthalpy Changes (measured by) -> Calorimetry
- Enthalpy Changes (expressed as) -> ΔH Notation
- Calorimetry (uses) -> Heat Transfer Equation
- Calorimetry (requires) -> Calorimeter Design
- Calorimetry (measures) -> Temperature Change
- Heat Transfer Equation (includes) -> Temperature Change
- Calorimetry (applies to) -> Combustion Analysis
- Calorimetry (generates) -> Data Analysis
- Data Analysis (produces) -> Energy Diagrams
- Calorimeter Design (evaluated for) -> Experimental Error

## Notes

- **Enthalpy Changes**: Energy change in chemical reactions at constant pressure [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23636), [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23636)
- **Enthalpy**: Heat content of a system; defined for chemical reactions [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23636), [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23636)
- **Molar Enthalpy**: Enthalpy change per mole of reactant or product [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23636), [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23636)
- **Calorimetry**: Experimental technique to measure heat transfer in reactions [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23641), [Resource](https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/YlIUl7k3G0y6R-b8XyPAGw), [Resource](https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/9ykNTynh306g6EnZlkTITQ)
- **Heat Transfer Equation**: Q = mcΔt relates heat to mass, specific heat capacity, and temperature change [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23634), [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23634)
- **ΔH Notation**: Standard notation to communicate and calculate energy changes [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23638)
- **Calorimeter Design**: Simple apparatus using insulated containers to measure heat transfer [Resource](https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/0uxhxD914kqzmssVwCK4tg)
- **Temperature Change**: ΔT is measured to determine heat absorbed or released [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23634), [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23634), [Resource](https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/9ykNTynh306g6EnZlkTITQ)
- **Combustion Analysis**: Measuring heat released when substances burn in calorimetry [Resource](https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/9ykNTynh306g6EnZlkTITQ)
- **Data Analysis**: Applying mathematical models to compare energy changes and assess solutions [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23648)
- **Energy Diagrams**: Visual representation of energy changes in chemical reactions [Outcome](https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23648), [Resource](https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/YlIUl7k3G0y6R-b8XyPAGw)
- **Experimental Error**: Evaluation of calorimeter precision and accuracy in repeated trials [Resource](https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/0uxhxD914kqzmssVwCK4tg)

![Enthalpy Changes and Calorimetry](https://goa-cc-uat-aili-app-001.azurewebsites.net/api/generate/e2e1f88d-fe05-4416-a42b-da001cb51471/asset/758)

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*AILI word map · language en · model claude-haiku-4-5-20251001 · generated 2026-09-17 · id e2e1f88d-fe05-4416-a42b-da001cb51471*

### Sources

- node:n1: Chemistry › Chemistry (20, 30) › Chemistry 30 › Unit A: Thermochemical Changes › General Outcome 1 (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23636)
- node:n2: Chemistry › Chemistry (20, 30) › Chemistry 30 › Unit A: Thermochemical Changes › General Outcome 1 (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23634)
- node:n3: Chemistry › Chemistry (20, 30) › Chemistry 30 › Unit A: Thermochemical Changes › General Outcome 1 (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23641)
- node:n4: Chemistry › Chemistry (20, 30) › Chemistry 30 › Unit A: Thermochemical Changes › General Outcome 1 (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23636)
- node:n5: Chemistry › Chemistry (20, 30) › Chemistry 30 › Unit A: Thermochemical Changes › General Outcome 1 (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23634)
- resource:r1: Resources › type#studentsupport, type#teachersupport › SCN3796 (https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/YlIUl7k3G0y6R-b8XyPAGw)
- node:n6: Chemistry › Chemistry (20, 30) › Chemistry 30 › Unit A: Thermochemical Changes › General Outcome 1 (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23638)
- resource:r2: Resources › type#activity › SCN3796 (https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/9ykNTynh306g6EnZlkTITQ)
- node:n7: Chemistry › Chemistry (20, 30) › Chemistry 30 › Unit A: Thermochemical Changes › General Outcome 1 (https://goa-cc-uat-aili-app-001.azurewebsites.net/explore/node/23648)
- resource:r3: Resources › type#activity › SCN3796 (https://goa-cc-uat-aili-app-001.azurewebsites.net/library/resource/0uxhxD914kqzmssVwCK4tg)