Answer these
(a) How much energy is transferred when 1 g. of boiling water at `100^@ C` condenses to water at `100^@ C`?
(b) How much energy is transferred when 1 g. of boiling water `100^@C` cools to water at `0^@` C?
(c) How much energy is released or absorbed when 1 g. of water at `0^@ C` freezes to ice at `0^@ C`?
(d) How much energy released or absorbed when 1 g. of steam at `100^@` C cools to ice at `0^@` C?

How much energy will be released by cooling 1 kg of water upto temperature of 10^(@) C ?

How much energy in joule is consumed when 100 units electricity are used?

(a) How much heat should be provided to ice of 720 g mass, lying at - 10^@C to melt it to water at 0^@C ? (b) How much heat should be provided to water at 0^@C to increase its temperature to 100^@C ?(c) How much heat should be given to water at 100^@C to transform it completely into water ? (d) Totally, how much heat should be given to ice of 720 g at -10^@C to convert it completely into vapour ? (C"ice"=2220 "J kg"^(-1) K^(-1), C"water"=4190 "J kg"^(-1) K^(-1) , LF=333 "kJ"/"kg", LV=2256 "kJ"/"kg" )

How much positive and negative charge is there in a 100 g water ? (Molar mass of water is 18).

When 1 kg of ice at 0^@ C melts to water at 0^@ C, the resulting change in its entropy, taking latent heat of ice to be 80 "cal/".^@C is ____

100g of ice at 0^(@) is mixed with 100g of water at 100^(@)C . What will be the final temperature (in K ) of the mixture?

540 g of ice at 0^(@)C is mixed with 540 g of water at 80^(@)C . The final temperature of the mixture is

Calculate the change in internal energy when the 1 g water is converted into steam.