A person's skin is more selveely burnet when put in contact with `1g` of steam at `100^(@)` then when put inn contact with `1g` of water at `100^(@)` Explain

How much energy needs to be supplied to 150g of water at 100^(@)C to convert it to steam at 100^(@)C . (L_(vap) = 540 cal//g) .

A copper sphere of mass 500 g is heated to 100^(@)C and then introduced into a copper calorimeter containing 100 g of water at 20^(@)C . Find the maximum temperature of the mixture, if the mass of calorimeter is 100g and specific heat capacity is 0.1 cal//g^(@)C .

calculate the increase in internal energy of 1 kg of water at 100^(o)C when it is converted into steam at the same temperature and at 1atm (100 kPa). The density of water and steam are 1000 kg m^(-3) and 0.6 kg m^(-3) respectively. The latent heat of vaporization of water =2.25xx10^(6) J kg^(1) .

A calorimeter containes 50g of water at 50^(@)C . The temperature falls to 45^(@)C in 10 minutes. When the calorimeter contains 100g of water at 50^(@)C it takes 18 minutes for the temperature to become 45^(@)C . Find the water equivalent of the calorimeter.

A thermally insulated pot has 150 g ice at temperature 0^(@)C . How much steam of 100^(@)C has to be mixed to it, so that water of temperature 50^(@)C will be obtained ?

Find the increase in mass when 1 kg of water is heated from 0^@C to 100^@C . Specific heat capacity of water = 4200 J kg^(-1) K^(-1) .

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?

Steam at 100^(@)C is passed into 20g of water at 10^(C when water acquires temp of 80^(@)C the mass of water present will be (take specifies heat of water 1 cal g^(1) c^(-1) & latent heat of steam =540 cal g^(-1) c^(-1)

In Joly's differential steam calorimeter, 3g of an ideal gas is ccontained in a rigid closed sphere at 20^@C . The sphere is heated by steam at 100^@C and it is found that an extra 0.095 g of steam has condensed into water as the temperature of the gas becomes constant. Calculate the specific heat capacity of the gas in (Jg^(-1) K^(-1). The latent heat of vaporization of water = 540 cal g ^(-1) .

A solid of mass 250 g at 90^(@)C is dropped in a calorimeter containing 100 g of water at 15^(@)C . The resulting temperature of mixture becomes 40^(@)C . The mass of calorimeter is 100 g and its specific heat capacity is 0.1 cal//g^(@)C . Find the specific heat capacity of the solid.