Physics - Heat & Thermo Question with Solution | TestHub

$\mathrm{M}$grams of steam at${100}^{\mathrm{o}}\mathrm{C}$is mixed with$200\mathrm{}\mathrm{g}$of ice at its melting point in a thermally insulated container. If it produces liquid water at${40}^{\mathrm{o}}\mathrm{C}$[heat of vaporization of water is$540\mathrm{c}\mathrm{a}\mathrm{l}/\mathrm{g}$and heat of fusion of ice is$80\mathrm{c}\mathrm{a}\mathrm{l}/\mathrm{g}$], the value of$\mathrm{M}$is ________