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Thermochemistry Fundamentals: Key Definitions and Values for Water

Learn essential thermochemistry definitions like specific heat, fusion, vaporization, melting, and freezing points with values for water.

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Thermochemistry Fundamentals: Key Definitions and Values for Water

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  1. Thermochemistry Definitions

  2. Definitions • Specific Heat (Cp) – The amount of heat energy needed to raise the temperature of 1g of any substance by 1°C. For water the value is 1cal/g°C or 4.18J/g°C • Heat of Fusion (Hf) – The amount of heat needed to pass 1g of a substance through its melting point. • Melting Point (MP)- The temperature at which a substance can exist as both a solid and a liquid. • Freezing Point (FP) – The temperature at which a substance can exist as both a liquid and a solid. • Heat of Vaporization (Hv) – The amount of heat needed to pass 1g of a substance through its boiling point • Boiling Point (BP) – The temperature at which a substance can exist as both a liquid and a gas.

  3. Values for Water- Must Memorize

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