How much heat is needed to raise the temperature of 25 g of a substance by 30°C when the specific heat is 0.92 J/g-°C? 500 J 690 J 130 J 816 J

asked Mar 22, 2024 785 views

5 votes

How much heat is needed to raise the temperature of 25 g of a substance by 30°C when the specific heat is 0.92 J/g-°C?

500 J

690 J

130 J

816 J

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Answer

Step-by-step explanation:

Q = specific Heat × mass × change in temp.

Q = 0.92 × 25×30 = 690

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