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## Sentence Examples

**The** **equation** **of** **energy** **is** **dQ**=**dE**+**pdv**, (17) **expressing** **that** **the** **total** **energy** **dQ** **is** **used** **partly** **in** **increasing** **the** **internal** **energy** **of** **the** **gas**, **and** **partly** **in** **expanding** **the** **gas** **against** **the** **pressure** **p**. **If** **we** **take** **p** = **RNT**/**v** **from** **equation** (14) **and** **substitute** **for** **E** **from** **equation** (16), **this** **last** **equation** **becomes** **dQ** 2 (**n** +3)**RNdT** +**RNTdv** (18) **which** **may** **be** **taken** **as** **the** **general** **equation** **of** **calorimetry**, **for** **a** **gas** **which** **accurately** **obeys** **equation** (14).

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