Using a food calorimeter a 0.11 g sample of brazil nut was burned. the water in the calorimeter (95g) had its temperature go from 19.5 c to 26.86 c. what is the caloric value for brazil nuts in kcal/g?

Answer : The calorific value for Brazil nuts is 6.4 kcal/g

Explanation :

First we have to calculate the amount of heat released.

Formula used :

or,

where,

Q = heat released = ?

m = mass of water = 95 g

c = specific heat of water =

= initial temperature  =

= final temperature  =

Now put all the given value in the above formula, we get:

conversion used : (1 kcal = 1000 cal)

Now we have to calculate the calorific value for Brazil nuts in kcal/g.

Therefore, the calorific value for Brazil nuts is 6.4 kcal/g

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