Statement 1: The cold pack used by athletes t | vedclass

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(B) Statement $1$ describes an endothermic process where the dissolution of a solute (like ammonium nitrate) in water absorbs heat from the surroundin

Vedclass · Accepted Answer

Statement $1$ and Statement $2$ are both true,but Statement $2$ is not the correct explanation of Statement $1$.

Vedclass · Answer

(B) Statement $1$ describes an endothermic process where the dissolution of a solute (like ammonium nitrate) in water absorbs heat from the surroundings,lowering the temperature. This is a common application of cooling packs.Statement $2$ describes the colligative property known as the depression of freezing point,which states that the freezing point of a solvent decreases when a non-volatile solute is added.While both statements are scientifically correct,the cooling effect in a cold pack is primarily due to the endothermic nature of the dissolution process (enthalpy of solution),not directly due to the depression of the freezing point of the solvent. Therefore,Statement $2$ is not the explanation for Statement $1$.

Statement $1$: The cold pack used by athletes to treat injuries on the field works by dissolving a solute in water,which causes the temperature to decrease. Statement $2$: Adding a non-volatile solute to a solvent decreases its freezing point.

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