Question

sample. Sunt the mass of the empty 3. Use the results of Steps and 2 to determine the heal the equation H = Atm-cp 63,44 - 15-48.44 i ned by the wat where H-heat absorbed (in J), Archange in temperature in°C), m heated in B), and Cp specific heat capacity (4.18 Sig for water) sample H = 4.4°C 14, 18/9 10:48.44g=890,9) ass of the water Sample2 H = 14.8°C 14. 185/9 C048.449 = 294607) Physical Science with Vernier 10-3 LumHER IN 4. Calculate the mass in g) of each food sample burned. Subtract the initial mass from the final mass. 79-1=0,21 04 - 97 = -0.08. Sample sample2 5. Use the results of Steps 3 and 4 to calculate the energy content in J/g) of each food sample. le results of other groups below.

Answer 1

For finding energy content , the resulting value must be decided by grams of food burnt.

For Sample First-

According to you heat absorbed =840.4 joule

The mass of food sample burned=0.21gram

Hence energy content =840.4÷o.21=4001.90 joule per gram.

Similarly for sample -2

Energy content =2446.7÷(-0.88) = -2780. 34 joule per gram (negative sign denotes that it lost energy.)