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The Phase Change Calculator is a powerful tool designed to help you calculate the heat energy required for various phase changes, including melting (solid to liquid) and vaporization (liquid to gas). By entering the mass of your substance and selecting it from the provided list, you can easily determine the energy needed for a phase change.
To use the calculator, follow these simple steps:
The calculator will display the total heat energy required in kilojoules (kJ), along with detailed steps outlining how the calculation was performed. This allows you to understand the relationship between mass, latent heat, and the energy required for phase changes.
Latent heat is the amount of heat energy required to change the state of a substance without changing its temperature. It plays a critical role in processes like melting and vaporization.
Latent heat can be calculated using the formula: Q = m × L, where Q is the heat energy (in joules), m is the mass (in kg), and L is the specific latent heat (in J/kg).
Yes! The calculator includes a variety of common substances, and you can also enter a custom latent heat value for substances not listed.
Kilojoules (kJ) are used to provide a more manageable unit for larger amounts of energy. Since phase change calculations often involve significant quantities of heat, kJ is a more practical measurement.
The calculator provides accurate results based on the specific latent heats for the substances listed. For precise applications, ensure you are using the correct latent heat values for the conditions of your scenario.
| Substance | Solid to Liquid (J/kg) | Liquid to Gas (J/kg) |
|---|---|---|
| Water | 334,000 | 2,260,000 |
| Ethanol | 108,000 | 840,000 |
| Iron | 247,000 | 6,290,000 |
| Aluminum | 397,000 | 10,500,000 |
| Gold | 64,500 | 1,580,000 |
| Lead | 23,000 | 871,000 |
| Silver | 105,000 | 2,330,000 |
| Copper | 206,000 | 4,800,000 |
| Mercury | 11,800 | 296,000 |
| Methanol | 110,000 | 1,100,000 |