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How does change in pressure affect the boiling point of a compound?
Wiki User
∙ 9y ago
The boiling point temperature of a compound increases as the pressure increases,
until the pressure reaches the critical pressure of the compound. For water, you have :
P ( kPa ) T ( C )
------------ ----------
1.0.............. 6.97
50....... .......81.32
100............ 99.61
101.325... 100.0
500........... 151.83
8000......... 295.01
20000....... 365.75
22064....... 373.95 ( Critical Point of H2O )
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoThe greater the pressure that is exerted on a compound, the higher the energy that is required to boil it. A decrease in the pressure will also reduce a compound's boiling point.
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How does the boiling point of a liquid vary with pressure?
Something boils when its vapor pressure equals the atmospheric (barometric) pressure above it. When the two are equal, that defines the boiling point.Therefore, you can either boil something by heating the liquid, and thus raising its vapor pressure (vapor pressure goes up with temperature), or you can boil something by reducing the atmospheric pressure above it until it matches the vapor pressure.See the Related Questions links to the left for more information about how the boiling point of water changes with elevation and atmospheric pressure.
Is boiling point a physical or chemical property?
It is a physical property because the element/compound will change without involving a change in chemical composition.Physical
What can be said of a boiling point of a liquid?
At the boiling point a liquid is transformed in a gas; it is a change of phase, a physical process.
Which term is defined as the change in physical state form liquid to gas occurring throughout liquid?
The change in physical state from liquid to gas occurring throughout the liquid is called boiling. It occurs at boiling point of a liquid or when the pressure of the surroundings is reduced as per its boiling point. It boils with the use of vacuum pump and at high altitudes. Boiling Vaporization is the change in state from a liquid to a gas. Evaporation and boiling are the two types of vaporization. You are describing boiling. boiling A+: Condensation
How does pressure and impurities affects boiling point?
Boiling is used to describe a change of state of a pure liquid to vapour phase. The particular temperature at which this change of state occurs is defined as the boiling point of that specific liquid. Now the question is will addition of impurities have any effect on the boiling point of water. The addition of impurities such as salt or sugar to pure water raises its boiling point.
What solvents change water's boiling point?
Any solvent can; the more ions it dissipates into, the more it will change the boiling point (in general). You shouldn't expect a very large change, however. Pressure tends to affect boiling point more than solvents.
Can boiling temperature of an element change?
The boiling temperature of an element can change by changing the pressure.
How does pressure change the boiling point of gasoline?
Higher pressure increase the boiling point of gasoline, just like with water.
What physical effect can change the boiling of substance?
Pressure
How does the liquid know the pressure of the atmosphere?
The boiling point of an element or a substance is the temperature at which the Vapor_pressureof the liquid equals the environmental pressure surrounding the liquid.if we close the container and change the pressure outside the container.. the boiling point will change... why?? how will the solution inside know that the pressure outside the container is changing and it has to now change its boiling point.??
Does waters boiling point change under pressure?
yes
Is boiling point a chemical or physical?
Boiling Point is a physical change because the compound itself, while changing from a solid to gas, does not change otherwise.
Is water boils an element compound or a mixture?
Water boiling is a phase change, which is a kind of physical change.
Can you change the boiling point of a liquid?
- You can change the boiling point of a liquid if you add different solutions or chemicals that alter its physical and chemical properties. - Also it can depend on pressure. If, for instance, you were on a mountain the pressure would be higher so the boiling point would be lower.
Do the melting point and boiling point of a substance ever change?
These values depends (specially the boiling point) on the pressure.
Why might the typical boiling point change?
Due to the temperature, environment, and matter the boiling pot will change. Hope this will help By either the pressure or purity of the substance.
How can you change the boiling point of liquid?
you can adjust the pressure. for example water boils at a higher temperature in a pressure cooker.
