A $10kg$ block of ice is heated from $-15$ to $110$ degrees Celsius and converted to steam.

a$.$ What phase changes are involved? Draw a heating curve for this situation. $[$A $/4]$

b$.$ Calculate the total energy needed.

$($specific heat capacity of ice is $2\mathrm{.}06\frac{J}{g}C,$ specific heat capacity of water is $4\mathrm{.}18\frac{J}{g}C,$

specific heat capacity of steam is $2\mathrm{.}02\frac{J}{g}C,$ specific latent heat of fusion for water is

$334$J$/$g and specific latent heat of vaporization for water is $2260\frac{J}{g})$