Question

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?

Answer 1

Answer:

$Q=197505J$

Explanation:

From the question we are told that:

Mass $m=2500g=2.5kg$

Initial heat of pan $i_h=190 \tetxtdegree$

Final heat of pan $f_h=25˚C \tetxtdegree$

 

Generally the equation for Heat energy released is mathematically given by

 $Q=mC \triangle T\\\\Q=2.5*462 *(190-26)\\\\Q=1155 *(190-26)\\\\Q=1155 *(171)$

 $Q=197505J$