Water on mountains starts boiling at a temperature less than 100°C due to the lower atmospheric pressure at higher altitudes. The reduced pressure decreases the boiling point of water, causing it to boil at temperatures below 100°C.
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Due to impurities, the boiling point (B.P) of a liquid increases. This phenomenon is known as boiling point elevation and is a colligative property. The presence of impurities lowers the vapor pressure of the solution, requiring a higher temperature for ...
Running a fan in hot weather gives comfort because our sweat evaporates faster. The moving air increases the evaporation rate of sweat from our skin, which cools the body through the process of evaporative cooling.
The temperature of the Sun’s surface is approximately 6000K. This value refers to the photosphere, the Sun’s outer layer that emits the light we see.
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.
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 ...