Answer:
Third choice see below
Explanation:
Weight change of potato chip .45 - .42 = .03 gm
Assume all of the heat from burning the chip goes into the water (and none goes into the air or heating the can)
24 degrees - 21 degrees = 3 degrees C temp change
spec heat water = 1 cal / g -cal
50 gm * 3 degrees * spec heat water = 150 calories
150 calories = 150/1000 Calories
Now for the potato chip
150/1000 Calories / .03 gm = 5 Cal/gm
