From: Andrew Lorimer <andrew@lorimer.id.au>
Date: Tue, 4 Dec 2018 03:41:34 +0000 (+1100)
Subject: start chemical energy stuff (calorimetry, (exo|endo)thermic equations
X-Git-Tag: yr12~288^2~3
X-Git-Url: https://git.lorimer.id.au/notes.git/diff_plain/68fd9bb96fb4d5f34ef9fb518bc81b28fb820669?ds=sidebyside

start chemical energy stuff (calorimetry, (exo|endo)thermic equations
---

diff --git a/chem/energy.md b/chem/energy.md
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+# Chemical energy
+
+Chemical energy = heat content = enthalpy
+
+$$\Delta H = H_{\text{products}} - H_{\text{reactants}}$$
+
+**Exothermic** - energy released from system  
+**Endothermic** - energy absorbed by system
+
+Must specify states (latent heat)
+
+## Calorimetry
+
+$$E = mc \Delta T$$
+
+$$\text{calibration factor} = {E \over \Delta T} = {VIt \over \Delta T} \quad \text{J/K}$$
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