A bomb calorimeter has a heat capacity of 900 J/oC and contains 800 g of water (specific heat capacity 4.184 J/g. oC). If a 5.00 g sample of a carbohydrate is combusted in the calorimeter and the change in temperature is 20 oC, what is the approximate value of qrxn? a. –425 kJ

b. –67 kJ

c. 85 kJ

d. –85 kJ