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the energy required to transform a given quantity of a substance from a liquid into a vapor or gas at a given pressure so the enthalpy of them also different. simply can we say heat is released by the substance also differ such as heat capacity of water and HCL. In addition , pressure and volume of them not same at same temperature. thank you

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Q: Why does the standard heat of vaporization values differ between H2O and HCl?
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