The concept of internal energy is derived from the first law of thermodynamics. This law, also known as the law of energy conservation, defines internal energy as the total energy contained within a system.
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The boiling point of water depends on the pressure above the open surface of water. As pressure increases, the boiling point rises, and as pressure decreases, the boiling point lowers.
The melting point of alloys is typically higher than that of their constituent metals. This is because the mixing of different metals in an alloy introduces additional forces between atoms, resulting in a stronger atomic arrangement that requires higher temperatures ...