Question

1. Calculate the total heat energy needed to convert 100g of ice at -10⁰C to steam at 110⁰

Answer 1

Specific heat capacity of Ice $=2.108Jg^{-1}K^{-1}$

Specific latent heat of fusion of Ice $=336Jg^{-1}$

Specific heat capacity of water$=4.184Jg^{-1}K^{-1}$

Specific latent heat of vaporization of steam$=2260Jg^{-1}$

Specific heat capacity of steam $=1.996Jg^{-}K^{-1}$

$H_T=100[10×2.108+336+4.184×100+2260+1.996×10]$

$=305544J$