Heat released by `1kg` steam at `150^(@)C` if it convert into `1kg` water at `50^(@)C`.

Find the amount of heat released if 1kg steam at 200^(@)C is convered into -20^(@)C ice.

Find the amount of heat released if 1kg steam at 200^(@)C is convered into -20^(@)C ice.

Assume that heat capacity of H_(2) O to be 4.2 xx 10^(3) J kg ^ (-1) K^(-1) and the latent heat of vapourisation of H_(2) O to be 22.5 xx 10^(5) J kg^(-1) . The amount of heat in joule required to heat 1 kg of water from 50^(@)C to 100^(@)C and then to convert into steam at 100^(@)C is

In an energy recycling process, X g of steam at 100^(@)C becomes water at 100^(@)C which converts Y g of ice at 0^(@)C into water at 100^(@)C . The ratio of X/Y will be (specific heat of water ="4200" J kg"^(-1)K, specific latent heat of fusion =3.36xx10^(5)"J kg"^(-2) , specific latent heat of vaporization =22.68xx10^(6)" J kg"^(-1) )

In an energy recycling process, X g of steam at 100^(@)C becomes water at 100^(@)C which converts Y g of ice at 0^(@)C into water at 100^(@)C . The ratio of X/Y will be (specific heat of water ="4200" J kg"^(-1)K, specific latent heat of fusion =3.36xx10^(5)"J kg"^(-2) , specific latent heat of vaporization =22.68xx10^(5)" J kg"^(-1) )

Find the amount of heat required to convert 10 kg ice at -10^(@)C to water at 50^(@)C . Given specific heat of ice 2100Jkg^(-1)K^(-1) , specific heat of water 4200Jkg^(-1)K^(-1) and latent heat of ice 3.36xx10^5Jkg^(-1)

The heat of combustion of ethane gas is -368 kcal mol^(-1) . Assuming that 60% of heat is useful, how many m^(3) of ethane measured at NTP must be burned to supply heat to convert 50 kg of water at 10^(@)C to steam at 100^(@)C ?