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Katarina [22]
3 years ago
7

What is law of conservation of mass​

Physics
1 answer:
timurjin [86]3 years ago
5 0

Explanation:

<h2>law of conservation of mass</h2>

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

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Answer:

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Explanation:

The heat needed to change the temperature of a sample is:

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Sample A:

\Delta T=-\frac{Q}{cm} =\frac{Q}{4186*4.0}

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Sample B:

\Delta T=-\frac{Q}{cm} =\frac{Q}{2700*2.0}

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Sample C:

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Note that the numbers 16744, 5400, 9450 are in the denominator of the expression -\frac{Q}{cm} that gives the drop on temperature. so, if Q is the same for the three samples the smallest denominator gives the largest drop and vice versa.

So, the smallest drop is Sample A and the largest is Sample C.

(Important: The minus sign of \Delta T implies the temperature is dropping)

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Explanation:

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