5.–/1 points ncchemap 11.003. Ask Your Teacher My Notes Question Part Points Sub

Question

5.–/1 points ncchemap 11.003. Ask Your Teacher My Notes Question Part Points Submissions Used 102 g of iron at 86.0°C are placed in contact with 210. g of silver at 10.0°C. If no heat is lost to the surroundings, what is the final temperature of the metals? The specific heat of iron is 0.418 J/g·°C and that of silver is 0.251 J/g·°C. 5.–/1 points ncchemap 11.003. Ask Your Teacher My Notes Question Part Points Submissions Used 102 g of iron at 86.0°C are placed in contact with 210. g of silver at 10.0°C. If no heat is lost to the surroundings, what is the final temperature of the metals? The specific heat of iron is 0.418 J/g·°C and that of silver is 0.251 J/g·°C. 5.–/1 points ncchemap 11.003. Ask Your Teacher My Notes Question Part Points Submissions Used 102 g of iron at 86.0°C are placed in contact with 210. g of silver at 10.0°C. If no heat is lost to the surroundings, what is the final temperature of the metals? The specific heat of iron is 0.418 J/g·°C and that of silver is 0.251 J/g·°C.

Explanation / Answer

m = 102 g of iron

Tiron = 86°C

Ciron = 0.418 J/gC

m = 210 g of silver

Tsilver = 10

Csilver = 0.251 J/gC

Qsilver = -Qiron

102*0.418(Tf-86) = -210*0.251*(Tf-10)

-102*0.418/(210*0.251) (Tf-86) = Tf - 10

-0.80887Tf + 86*0.80887 = Tf- 10

(1+0.80887)*Tf = 86*0.80887 + 10

Tf = (86*0.80887 + 10) / (1+0.80887)

Tf = 43.984

whichi s between 10 and 86,

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