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Mass Movements

A student soa...

Question

A student soaked 10 g raisins in 75 ml of distilled water in two beakers A and B . He maintained beaker A at 20⁰C and B at 40 ⁰C. after an hour , the percentage of water absored will be ------------ .
a) same in beaker A and B
b) more in A than in B
c) more in B than in A
d) twice as much in B as in A

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Solution

c) More in B than in A
Osmosis is based on molecular movement which increases at higher temperature due to rapid movement because of heat, hence more absorption.

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