whats the correct answer please 07 Question (1 point) US Senator Proteats A US S

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whats the correct answer please

07 Question (1 point) US Senator Proteats A US Sesasor has pretested atter a count 4th attempt teférence List: Books egishpurdue edu A (Amenican hai See Periodic Table Q See Hint waklishi.com | Kemya espara News Leader ya Disspora News Goods, Fuel Your Car The complete combustion of 0.521 g of a snack bar in a calorimeter Cal 6.15 kJ/ C)raises the temperature of the calorimeter by 1.33'C Calculate the food value lin Caly) for the snack bar g Safarioom's Bon Caly akday spirit is stif in t And as alwaya, m.. Movies, Muse & 3rd attempt Android Apps? ogie.com movies, music and nTV instanely 2nd attempt ? See Periodic Table Q See Hint Feedback

Explanation / Answer

Heat change = calorimeter capacity * change in temperature

q = 6.15 * 1.33

q = 8.18 kJ for 0.521 g.

Then, food value = 8.18 / 0.521 = 15.7 kJ/g.

But,

1 J = ( 1 / 4.184 ) cal

1 kJ = ( 1000 / 4.184 ) cal

therefore,

Food value = 15.7 * 1000 / 4.184 cal / g. = 3752.4 cal / g.

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