How does a change of temperature influence the values of molarity and molality of a solution?

Question

Answer

Molarity depents. ...on volume which is a function of temp ...hence the magnitude of molarity influence by change in temp...while molality rmain s ....unchanged from such ...acts

Answer

Because we have fiened molarity there equation is voluam is present that change with tremputer

Answer

Introduction:
A change in temperature can have a significant impact on the values of molarity and molality of a solution. Molarity and molality are both measures of concentration, but they differ in terms of how they are calculated and the units in which they are expressed.

Explanation:

1. Molarity:
Molarity is defined as the number of moles of solute per liter of solution. It is expressed in moles per liter (mol/L). The formula for calculating molarity is as follows:

Molarity (M) = moles of solute / volume of solution (in liters)

When the temperature of a solution changes, both the volume of the solution and the number of moles of solute may be affected. This can result in a change in molarity. The key factors to consider are:

- Volume: An increase in temperature generally leads to an expansion of the solution, resulting in an increase in volume. This would decrease the molarity of the solution since the same amount of solute is now distributed over a larger volume.

- Moles of Solute: In some cases, temperature changes can also affect the solubility of the solute. For example, for many solid solutes, solubility tends to increase with increasing temperature. As a result, more solute may dissolve in the same volume of solvent, leading to an increase in the number of moles of solute and therefore an increase in molarity.

2. Molality:
Molality is defined as the number of moles of solute per kilogram of solvent. It is expressed in moles per kilogram (mol/kg). The formula for calculating molality is as follows:

Molality (m) = moles of solute / mass of solvent (in kilograms)

Unlike molarity, molality is not affected by changes in temperature. This is because molality is a ratio of the moles of solute to the mass of the solvent, which does not change with temperature. As a result, the molality of a solution remains constant regardless of temperature fluctuations.

Conclusion:
In summary, a change in temperature can influence the values of molarity and molality of a solution. Molarity may change due to alterations in the volume of the solution and the solubility of the solute. On the other hand, molality remains constant as it is based on the ratio of moles of solute to the mass of the solvent, which is not affected by temperature.

Answer

Molality will remains unchanged and molarity will increase with increase in temp. as it is function of volume

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