Question

nufacturer claims that its new dietetic dessert has "fewer than 10 Calories per serving." To test the claim, a chemist at the Departmetn of Consumer is places one serving in a bomb calorimeter and burns it in O2. The initial temperature is 20.92°C and it rises to 28.58°C. If the heat capacity of the calorimeter is 8.151 kJ/K, is the manufacturer's claim correct? (0.0 pts) What is the specific heat capacity (2 pts): Temperature change (1 pts): q calculation (1 pts): q =C* 4T o Is this claim justified? (1 pts) Comparison (1 pts): one to not d looY oibaba

Answer 1

6. specific her eacific heat capacity = Heat capacity / mass. = m 8.151 kJ/K (perserving) ) T 273/ 273 Temperature change = (28.58)-(20.92) = 7.66k (01) q = CXAT = 8.151 (kJ/K) *(7.66K) = 62.43666 kJ 62.43666x103 I & I cal 4.184 I = 14.92271989 x 103 cal ~ 14.9 x 103 cal comparison, & 14.9 Cal ( 103 cal = 1 cal) we got a 14.9 x103 calories per serving ie 14.9 Cal which is greater than 10 1 The claim is not justified Calories.