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jarptica [38.1K]
3 years ago
15

We saw in the calorimeter experiment that the combustion of a fuel is exothermic. what can you then say about the formation of a

fuel?
Chemistry
1 answer:
ankoles [38]3 years ago
8 0

Answer:

This question appear incomplete

Explanation:

This question appear incomplete. However, fuel is formed through a natural phenomenon involving the conversion of large amount dead and decayed organisms (usually algae and zooplanktons) to combustible fuel through exposure to relatively high temperature and pressure (over millions of years) in the earth's crust. Thus, since this involves a sort of absorption of heat energy (from the earth's crust), it can be referred to be an endothermic reaction.

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NemiM [27]

Answer:

<h3>25.0 grams is the mass of the steel bar.</h3>

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Q_1=-Q_2

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On substituting all values:

(m_1\times 0.452 J/g^oC\times (21.50^o-2.00^oC))=-(105 g\times 4.18 J/g^oC\times (21.50^o-22.00^o))\\\\m_1*8.7914=241.395\\\\m_1=\frac{219.45}{8.7914} \\\\m_1=24.9\\\\ \approx25 \texttt {grams}

<h3>25.0 grams is the mass of the steel bar.</h3>
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