Molten tin weighing 100 g was poured into a mold at a temperature of 232 ° C. As a result of cooling
| August 11, 2021 | education
Molten tin weighing 100 g was poured into a mold at a temperature of 232 ° C. As a result of cooling, the tin solidified; What amount of heat was transferred by tin to the environment at the time of its cooling to 190 ° С?
solution
Q = 0.1 * 59000 + 0.1 * 230 * 42 = 5900 + 966 = 6866 J
Answer: 6866 J
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