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What is the name given to the process when the vapours of a liquid get cooled?
condensation
What is the name given to the process when the vapours of the liquid get cooled?
The process you are referring to is called condensation. Condensation occurs when the vapor of a substance cools and transforms back into its liquid state.
What will happen to water at its boiling point at a given pressure?
Liquid water become gaseous water (vapors).
1. An unknown clear liquid is given to you in a beaker. You transfer the liquid from the beaker to a clean empty test-tube and begin to heat it. After a while you see vapors (which on further analysis?
indicate that the liquid is likely water or a water-based solution due to the formation of vapors upon heating. If the vapors condense back into liquid, it suggests that the substance has a relatively low boiling point. Further analysis, such as observing the boiling point and conducting additional tests, can help identify the composition of the liquid more precisely. If the vapors produce a specific odor or react with indicators, it could provide further clues about the liquid's identity.
How will show that the process of evaporation depends on the nature of the liquid?
By the measurement of the pressure vapour at a given temperature; this value is different from liquid to liquid.
When gas changes into liquid heat is taken in or given out?
When gas changes into liquid, heat is given out. This process is known as condensation, and it occurs when the gas molecules lose energy and slow down, releasing heat to the surrounding environment.
Describe the process of condensation When does condensation occur?
It occurs when a gas changes into a liquid. Heat is given off.
What name is given to the process that turns the solid wax into liquid?
The process that turns solid wax into liquid is called melting. During melting, heat is applied to the solid wax, causing its molecules to gain energy and transition into a liquid state. This process occurs at a specific temperature known as the melting point.
When polystyrene dissolves in acetone what properties does the solution have and what gas is given off?
When polystyrene dissolves in acetone, the solution appears cloudy or milky due to the dispersed polymer chains. During the dissolution process, acetone evaporates, and the gas given off is acetone vapors.
Why is it an advantage to transport nitrogen as a liquid rather than as a compressed gas?
The key to storing nitrogen as a liquid is that we need to compress and cool the nitrogen to cause it to change state from a gas to a liquid. By doing this, we can store a lot of nitrogen in a small volume compared to trying to store it as a gas.
What happen to a given mass of water as it is cooled from 4° to 0°?
Expands
How could you show that water is given off when epsom salts are heated?
When epsom salts are heated, water vapor is produced as a byproduct. This can be shown by heating epsom salts in a test tube and collecting the water vapor produced in a cooled condenser, where it will condense back into liquid water. The presence of liquid water in the condenser confirms that water is given off during the heating of epsom salts.
