# What is my Enthalpy?

Chemistry Level 2

A calorimeter (from Latin calor, meaning heat) is an object used for calorimetry, or the process of measuring the heat of chemical reactions or physical changes as well as heat capacity. If the thermochemical equation for the production of hydrochloric acid is

$\frac{1}{2}\ce{H_2}(g)+\frac{1}{2}\ce{Cl_2}(g) \to \ce{HCl}(g),\quad \Delta H=-92.3 \text{ kJ}$

then what is the enthalpy of 36.5 grams of hydrochloric acid at $$25^\circ C$$ of temperature and $$1\text{ atm}$$ of pressure?

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