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Is naphthalene a liquid or solid at room temp?
The boiling point of napthalene is 491 K. Therefore this is the temperature where a transition between the gas and liquid phase occurs.
If a solid piece of naphthalene is heated and remains at 80C until it is completely melted you know that 80C is the?
If a solid piece of naphthalene is heated and remains at 80°C until it is completely melted, you know that 80°C is the melting point of naphthalene. At this temperature, the solid phase transitions to the liquid phase, absorbing heat without a change in temperature until the entire sample is melted. This characteristic behavior is typical for substances during phase changes, where energy input goes into overcoming intermolecular forces rather than increasing temperature.
By which process can you separate a mixture of naphthalene and chalk powder?
Sublimation can be used to separate naphthalene from chalk powder. Naphthalene sublimes at room temperature, while chalk powder does not, allowing for the separation based on this difference in physical properties.
What statement BEST explains the plateau seen in the cooling curve of naphthalene?
The plateau in the cooling curve of naphthalene represents a phase change where the substance transitions from a liquid to a solid state. During this phase change, the temperature remains constant as the heat energy is used to break intermolecular forces rather than to increase the temperature. This indicates that all the naphthalene is solidifying before any further cooling occurs, illustrating the characteristic behavior of substances during phase transitions.
Why nephtaline sublimes?
Naphthalene sublimes due to its relatively low melting and boiling points, allowing it to transition directly from a solid to a gas when heated. This process occurs because the intermolecular forces in naphthalene are weak enough to let the molecules escape into the vapor phase without first becoming a liquid. Sublimation is facilitated at room temperature, which is why naphthalene is often found in mothballs, where it gradually releases vapor to repel insects.
What would be a good solvent at room temperature for naphthalene C10H8 Water ethanol or pentane?
Pentane would be a good solvent at room temperature for naphthalene (C10H8) as it is non-polar and can dissolve non-polar compounds like naphthalene effectively. Water and ethanol are polar solvents and would not dissolve naphthalene well.
What is the phase at room temperature of hydrogen?
At room temperature, hydrogen is in the gaseous phase.
Is naphthalene a solid?
Naphthalene is not an element. Naphthalene is a combination of elements. Its formula is C10H8 and it is a compound, not an element.
What is the phase of germanium at room temperature?
At room temperature (~25°C), germanium is in the solid crystalline phase.
What is the phase of hydrogen in room temperature?
The element hydrogen is in the gas phase at standard temperature and pressure.
What phase of matter is neon at at room temperature?
Gas at room temperature
Is naphthalene a liquid or solid at room temp?
The boiling point of napthalene is 491 K. Therefore this is the temperature where a transition between the gas and liquid phase occurs.
What is copper's phase at room temperature?
Copper is a solid at room temperature.
What is iodines phase at room temperature?
iodine is solid at room temperature
If a solid piece of naphthalene is heated and remains at 80C until it is completely melted you know that 80C is the?
If a solid piece of naphthalene is heated and remains at 80°C until it is completely melted, you know that 80°C is the melting point of naphthalene. At this temperature, the solid phase transitions to the liquid phase, absorbing heat without a change in temperature until the entire sample is melted. This characteristic behavior is typical for substances during phase changes, where energy input goes into overcoming intermolecular forces rather than increasing temperature.
What is the normal phase of scandium?
At room temperature scandium is a solid metal.
What is the phase of room temperature of neptunium?
Neptunium is a solid metal at room temperature.
