When salt is added to water, the boiling point increases and the freezing point decreases. This phenomenon is due to the colligative properties of solutions, where the presence of a solute affects the boiling and freezing points of the solvent.
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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 first law of thermodynamics confirms the concept of energy conservation. It states that energy cannot be created or destroyed, only transformed from one form to another, ensuring the total energy of an isolated system remains constant.
The function of a thermostat in a refrigerator is to maintain the same temperature. It regulates the cooling system, turning it on and off to ensure the internal temperature stays within a set range, thus preserving food at a consistent ...
In an isothermal change, the temperature of the system remains unchanged. Heat can be exchanged with the surroundings to ensure the temperature remains constant while the system undergoes expansion or compression.
In an adiabatic change, no heat is exchanged with the surroundings, so heat remains unchanged. However, the temperature of the system can change due to work done on or by the system.
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 temperature at which a solid substance transitions into a liquid state upon heating is called the melting point. This point marks the temperature at which the solid’s internal structure breaks down, allowing its particles to move freely and assume ...
Sublimate substances, such as camphor, naphthalene, and ammonium chloride, transition directly from solid to vapor phase. These substances exhibit sublimation behavior, seen in various applications like mothballs, vaporizers, and laboratory processes.
The transformation of a solid substance directly into vapor state without changing into liquid is called sublimation. Sublimation is a phase transition where a solid substance bypasses the liquid phase and converts into vapor upon heating, or vapor converts directly ...