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Molodets [167]
3 years ago
8

Los fenomenos fisicos son cambios permamentes en la materia?

Chemistry
1 answer:
alexgriva [62]3 years ago
5 0

Answer:

Explanation:

Try English please

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When a substance cannot be reduced by physical or chemical means to a simpler form, it is an example of a(n):
GREYUIT [131]
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An unknown metal has a mass of 86.8 g. When 5040 J of heat are added to the sample, the sample temperature changes by 64.7 ∘ C .
grandymaker [24]

Answer: The specific heat of the unknown metal is 0.897J/g^0C

Explanation:

The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.

Q=m\times c\times \Delta T

Q = Heat absorbed=5040 Joules

m= mass of substance = 86.8 g

c = specific heat capacity = ?

Initial temperature of the water = T_i

Final temperature of the water = T_f

Change in temperature ,\Delta T=T_f-T_i=(64.7)^0C

Putting in the values, we get:

5040=86.8\times c\times 64.7^0C

c=0.897J/g^0C

The specific heat of the unknown metal is 0.897J/g^0C

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Explanation:

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