How hot does a thanksgiving dinner roll need to be to warm up and melt a 4.0 g 'pat' of butter? (Roll: 25 g, Csteam= 1.996 J/g0C; Tf = 32ºC; Butter: Ti = 2.0°C, Tr = 32°C, Cbutter = 2.72 J/gºC, Hfusion = 32 J/g). [Remember, heat lost by roll equals heat gained by butter. Assume the specific heat of the roll is the same as the specific heat of steam.] %3D %3D

Question
How hot does a thanksgiving dinner roll need to be to warm up and melt a 4.0 g
'pat' of butter? (Roll: 25 g, Csteam= 1.996 J/g0C; Tf = 32ºC; Butter: Ti = 2.0°C,
Tr = 32°C, Cbutter = 2.72 J/gºC, Hfusion = 32 J/g). [Remember, heat lost by roll equals
heat gained by butter. Assume the specific heat of the roll is the same as the
specific heat of steam.]
%3D
%3D
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Transcribed Image Text

How hot does a thanksgiving dinner roll need to be to warm up and melt a 4.0 g 'pat' of butter? (Roll: 25 g, Csteam= 1.996 J/g0C; Tf = 32ºC; Butter: Ti = 2.0°C, Tr = 32°C, Cbutter = 2.72 J/gºC, Hfusion = 32 J/g). [Remember, heat lost by roll equals heat gained by butter. Assume the specific heat of the roll is the same as the specific heat of steam.] %3D %3D

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