Respuesta :
Heat required in calories is given by product of mass in g and change in temperature in degree Celsius.
Formula is given by:
[tex]Q=m\times \Delta T[/tex]
where, Q = heat required in calories
m = mass of substance in g
[tex]\Delta T[/tex] = change in temperature in degree Celsius
Insert the given vales of mass of water and temperature in above formula, we get:
[tex]\Delta T[/tex] = [tex]96.5^{o}C-34.2^{o}C[/tex]
= [tex]62.3 ^{o}C[/tex]
Now, [tex]Q=100 g\times 62.3 ^{o}C [/tex]
= [tex]6230 calories[/tex]
Thus, heat in kilocalories =[tex]6.23 kilocalories[/tex]
