Question

A student soaked 10 g of raisins in 100 ml of distilled water in two beakers A and B each. She maintained beaker A at 30${}^o$C and beaker B at 60${}^o$C. After two hour, the percentage of water absorbed will be:

• A. the same in both A and B.
• B. more in A than in B.
• C. more in B than in A.
• D. exactly twice as much in B as in A.

Answer 1

The correct option is C more in B than in A.

As a result of absorption or imbibition of water, the size of the raisins increases.
The difference in mass between the swollen and dry raisins gives the amount
of water imbibed by the raisins. The rate of imbibition increases with the increase in temperature. Therefore, raisin in beaker B absorbs more water than in beaker A.