Answered

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8. How many calories of heat energy (Q) would be released as a 2,500 g iron (Fe) frying pan at 190˚C cools to 25˚C?

Sagot :

okpalawalter8

Answer:

[tex]Q=197505J[/tex]

Explanation:

From the question we are told that:

Mass [tex]m=2500g=2.5kg[/tex]

Initial heat of pan [tex]i_h=190 \tetxtdegree[/tex]

Final heat of pan [tex]f_h=25˚C \tetxtdegree[/tex]

 

Generally the equation for Heat energy released is mathematically given by

 [tex]Q=mC \triangle T\\\\Q=2.5*462 *(190-26)\\\\Q=1155 *(190-26)\\\\Q=1155 *(171)\\[/tex]

 [tex]Q=197505J[/tex]

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