Three substances X ,Y and Z melt at 10 degree Celsius 45 degree Celsiu...
Physical Nature of Substances X, Y, and Z at Room Temperature
- Substance X: X melts at 10°C and boils at 100°C. At room temperature (assuming around 25°C), substance X is in a solid state as it is below its melting point.
- Substance Y: Y melts at 45°C and boils at 500°C. At room temperature, substance Y is in a liquid state as it is above its melting point but below its boiling point.
- Substance Z: Z melts at -10°C and boils at 220°C. At room temperature, substance Z is in a solid state as it is below its melting point. However, it is worth noting that substance Z has a melting point below 0°C, which means it is likely to be a liquid or even a gas if it were exposed to room temperature conditions. This is because substances with melting points below 0°C are referred to as "cryogenic" substances and require special conditions to maintain their solid state.
Explanation of States of Matter
The physical nature of substances X, Y, and Z at room temperature can be explained by their melting and boiling points. The melting point is the temperature at which a substance changes from a solid to a liquid, while the boiling point is the temperature at which a substance changes from a liquid to a gas.
Substance X has a melting point of 10°C, which means it will be in a solid state at room temperature. This is because the temperature is below its melting point and the substance has not yet reached a temperature high enough to change its state to a liquid.
Substance Y has a melting point of 45°C, which means it will be in a liquid state at room temperature. This is because the temperature is above its melting point, but below its boiling point, so the substance is in a liquid state.
Substance Z has a melting point of -10°C, which means it will also be in a solid state at room temperature. However, it is important to note that the melting point of substance Z is below 0°C, which means it is a cryogenic substance. This indicates that if it were exposed to room temperature conditions, it could easily change its state to a liquid or even a gas.
Overall, the physical nature of substances X, Y, and Z at room temperature can be explained by their melting and boiling points. These properties can help predict the state of a substance under different temperature conditions and can be useful in various applications, such as in the manufacturing of materials and in the study of chemical reactions.