Question

You decide to eat some dry ice which is solid CO2 to burn off some calories....

You decide to eat some dry ice which is solid CO2 to burn off some calories. Calculate the number of food calories burned by your body when eating 34.5 g of dry ice at a starting temperature of -83.6 celsius.

Hints: Csp of solid CO2 is 1.26 J/g*celcius, Csp of gas CO2 is 0.830 J/g*celcius, delta Hsub= 26.0 KJ/mol, the sublimation point for CO2 occurs at -78.5 celsius, 1food calorie is 1000 calories, 1 calorie is 4.184 J.

Assume the dry ice is heated to body temperature 37 Celcius.

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Answer #2

answered by: anonymous
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