Question

1792 ponent 26% of the heat released from burning fuel in a campstove actually goes to heating a pot and its contents. You start with 0.6 kg of ice at -18 °C, 1.3 L of water at 22 °C, and a 310 gram aluminum pot at 32 °C. The ice and water are put into the pot and the system is heated to 100 °C with 18% of the liquid boiling away. The specific heat of aluminum is 0.22 cal/g-°C. The specific heat of ice is 0.5 cal/g-°C. One gram of fuel produces 46000 J when it is burned. EXAMPLE NOTES IMAGES DISCU55 UNITS STATS HELP Part Description Answer Chk History 4.93 pts. 89% A. How much heat is required to go into the pot and water? include units with answer) # tries: 0 Shaw Details Format Check 2% try penalty Hints: 3,3 B. 4.93 pts 89% How much fuel needs to be burned? (include units with answer) # tries: 0 Show Details Format Check 24 try peralty Hints: 1,0 4.93 pts. 19% How long would the total energy released by burning the fuel run a 100-watt light bulb? (Use the amount of fuel from part B and assume all 46000J/gram goes to lighting the bulb) (include units with answer) # tries: 0 Show Details Format Check 25 try penalty Hints: 0.0

Hints for Part A:

Hint for Part B:

Answer 1

Solution G'Nen Heat Tehaeo 26 y kg ice at c 13 Hadee at 22 °C 3 lo gm A pot at 12°C Ica and wate haated to loo c with 18 Specifc heat aof A 0.22 Cal19c Speait heat Ica o.5 Cally c PartA To find ha much heat Yeined to go into Pot and wate 1(Ice)mGa(O-13) Heat taken y LIcat e (lo0-0)) 600( l0.5)(13) 795 C10)) 13.1o Kcd Q,aca) 2 113. lo kcal MonteCentes l00-Is) wade 1-3) (85) o. 22 X310 x100-32) . 63 kcal AI)

Qu CHeat of (pmbn mounoq momia tmady 1900 gm 600 t 13oo y- (m) L)(01) 0o XS40 xo 13 ।४५.6३ kca Pot wates Total heat taken 2Q+Q4 13 lo t 11o.5 + 4.63+184.68 E412.9 Kcal 412.9 kcal Rapeied heat To find haw much fuel nerds to be unad O.26 (Heat ekayd by fual (m o26)1.0 पा१.१। 7 O.26 X.O0y 026x 11.00Y z 144.32 gm 44.32 gma . Fuol bunad a

Pattc To find hou (ong wold the total enee eleard by buning fuel 100 Natt upht hulb mfeet x 46000 - 100 Watt 3 2 y 4 6000 t144 Ioo - 66337. 2 60x60 218.4y hrs time .44 ha