Question: Old wine glasses often appear cloudy because they have many small cracks on their surface. The cracks are caused by differences in the rate of

Old wine glasses often appear cloudy because they have many small cracks on their surface.

small cra on the s

The cracks are caused by differences in the rate of diffusion of sodium ions and hydrogen ions in the glass.

(i) Explain the meaning of the term diffusion.

(ii) Suggest why sodium and hydrogen ions do not diffuse at the same rate.

small cra on the s

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