A litre of alcohol weighs
Less in winter than in summer
Less in summer than in winter
Some both in summer and winter
None of the above
In summer alcohol expands, density decreases, so 1 litre of alcohol will weigh less in summer than in winter.
A 60 litre solution of alcohol and water contains 20 litres of alcohol. How much alcohol must be added to produce a solution of 50% alcohol ?
5 litre of benzene weighs