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Why is the curve for the freezing point of solvent different from the freezing point of solution?
Wiki User
∙ 11y ago
it is increased with the increasing density
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoIt is a characteristic of solutions that the freezing point of the mixture is lower than the freezing point of the solvent alone. This is called freezing point depression.
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What does any point above a solubility curve represent?
Unsaturated solutions - more solute could be dissolved at the temperature. The solubility curve indicates the concentration of a saturated solution- the maximum amount of solute that will dissolve at that specific temperature. Values below the curve represent unsaturated solutions - more solute could be dissolved at that temperature. Values above the curve represent supersaturated solutions, a solution which holds more solute that can normally dissolve in that volume of solvent.
How would the heating curve for glass be different from the heating curve for water?
the glass is malleable
What could have caused curve B to be different from curve A?
an enzyme could have been added to reaction b
What is a pH curve?
a plot showing the pH of a solution being analyzed as a function of the amount of titrant added
How can you determine the melting point of a substance based in its heating curve?
Heating curves (temp vs time) show the transition of a solid to a liquid to a gas. The solid begins to absorb heat, which is represented by a gradual increase in your curve starting from the origin. Eventually, the solid will reach the melting point, at which the temperature will cease to increase until it has fully transitioned to a liquid phase. Therefore, the melting point is the y-value correspondind to the first horizontal portion of the heating curve.
Suppose you heated frozen alcohol instead of ice how would the heating curve for alcohol be similar to and different from the heating curve for water?
AnswerAlcohol freezes at -114. i would imagine that the heating curve would be similar to the differences in freezing curve..
What is freezing weather?
Freezing point is defined as the temperature at which the vapour pressure of the liquid is equal to the vapour pressure of the solid.Vapour pressure arises due to the vapourisation of liquid from the surface. Vapour formation is proportional to temperature. As temperature increases, the liquid vapourises faster and hence vapour pressure (VP) increases. And as a fact, VP of solids is lower than liquids due to stronger London forces in solids.From this, we can conclude that VP of:solid at lower temperatures < solid at freezing point = liquid at freezing point < liquid at higher temperaturesLet's consider a liquid whose temperature and VP is above that of the freezing point. To freeze it, its VP must be decreased so that it becomes equal to that of the solid. VP is decreased by reducing temperature.However, if a non-volatile solute is added to the solvent, the VP decreases at a given temperature. Now, it will become equal to that of solid solvent at a lower temperature (Raoult's law). To understand how the equality is achieved at low temperatures, follow the freezing point depression graph.Y-AXIS|____________________________C.|_________________________.__|_____________________.________.D|__________________.________.|_____________B_.________.|____________._|_____.__|__________.___|_.|________.__.__|_|______A.______||______._|_____||____E.__|_____||________|_____||________|_____|_------------------------------------------X-AXIS-------------T1------ T2EAB- a slightly curved line for solid solventBC- a slightly curved line for liquid solventAD- a slightly curved line for solutionX AXIS- Temperature in KY AXIS- Vapour PressureA and B are the freezing points of the respective substancesInference from the graph:At T2, the vapour pressure of solution is lower than that of pure solvent (implied by 'However, if a non-volatile solute is added to the solvent, the VP decreases at a given temperature').The solution curve meets the solid curve at a freezing temperature lower than that of the pure solvent (implied by 'Now, it will become equal to that of solid solvent at a lower temperature (Raoult's law)').Thus, a solvent's freezing point (temperature at which a solvent freezes) can be reduced/depressed by turning it into a solution.For example, salt added to water will prevent it from freezing at 0 degree celsius.
What does any point above a solubility curve represent?
Unsaturated solutions - more solute could be dissolved at the temperature. The solubility curve indicates the concentration of a saturated solution- the maximum amount of solute that will dissolve at that specific temperature. Values below the curve represent unsaturated solutions - more solute could be dissolved at that temperature. Values above the curve represent supersaturated solutions, a solution which holds more solute that can normally dissolve in that volume of solvent.
Why is the meting and freezing point of a substance the same?
Melting is simply the reverse of freezing. The secret to it is that it takes quite a bit of heat movement to make a substance change from the freezing point. Heat moves out of substance in freezing, and heat moves into a substance to make it thaw.
How is a market supply curve similar to and different from an individual supply curve?
how is a market supply curve similar to and diffrent from an individual supply curve
What is the set of an equation in two variables in the set of all points in a coordinate plane that represent all the solutions of the equation?
To graph the set of all the solutions to an equation in two variables, means to draw a curve on a plane, such that each solution to the equation is a point on the curve, and each point on the curve is a solution to the equation. The simplest curve is a straight line.
Where do you find the solutions to a quadratic equation on a graph?
The solutions to a quadratic equation on a graph are the two points that cross the x-axis. NB A graphed quadratic equ'n produces a parabolic curve. If the curve crosses the x-axis in two different points it has two solution. If the quadratic curve just touches the x-axis , there is only ONE solution. It the quadratic curve does NOT touch the x-axis , then there are NO solutions. NNB In a quadratic equation, if the 'x^(2)' value is positive, then it produces a 'bowl' shaped curve. Conversely, if the 'x^(2)' value is negative, then it produces a 'umbrella' shaped curve.
How do you find the solubility of an element using a solubility curve?
When using a solubility curve to make a prediction about the amount of a solute within a solution, you must increase the amount of solute to make a solution, which will give you a concentrated solution
How would the heating curve for glass be different from the heating curve for water?
the glass is malleable
Why does osmotic fragility curve have a sigmoidal curve?
The cell responds differently to different solutions
Market demand curve?
the market demand curve is the curve related to the demand of the commodity demanded by the group of people to the at different price.
How are equations different from inequalities?
Equations are statements that state two expressions are equal, while inequalities are statements that state two expressions are not equal, meaning one is greater or less than the other. The graph of the solution set of an equation is a line or a curve, while the graph of the solution set of an inequality is a region at one side of the boundary line or curve obtained by supposing that the inequality was an equation.
