When the temperature of water decreses from `4^@C` to `2^@C` ,will the level of water rise or fall in the cylinder?

If temperature of water increases for 1^@C to 3^@C the density of water_____

If temperature of water is lowered form 4^@C to 3^@C its volume_____

When water is heated from 0^@C to 10^@C , it's volume

When water is heated from 0^@C to 10^@C its density.

In Hope's apparatus when the temperature of water drops from 4^@C water____ A. remains still B. moves upwards C. moves downwards D. freezes solid

A calorimeter of mass 50 gm and specific heat capacity 0.42 J g^-1 ^@C^-1 contains some water at 20^@ C. A metal piece of mass 20 gm at 100^@ C is dropped into the calorimeter. After stirring, the final temperature of the mixture is found to be 22^@C .Find the mass of water used. (specific heat of metal piece= 0.3 J g^-1 ^@C^-1 specific heat of water = 4.2 J g^-1 ^@C^-1 )

When the temperature is increased ,surface tension of water

It takes 2.0 seconds for a sound wave to travel between two fixed points when the day temperature is 10^@C . If the temperature rises to 30^@C , the sound wave travels between the same fixed parts in