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Andrew [12]
3 years ago
15

A decomposition reaction has a half-life that does not depend on the initial concentration of the reactant.what is the order of

the reaction?
Chemistry
1 answer:
kupik [55]3 years ago
7 0
The reaction is first order. 
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In an investigation, explain the best way to use variables in an experiment
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Question
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Answer:

The specific heat of the metal is 2.09899 J/g℃.

Explanation:

Given,

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For Water sample,

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When the metal sample and water sample are mixed,

The addition of metal increases the temperature of the water, as the metal is at higher temperature, and the  addition of water decreases the temperature of metal. Therefore, heat lost by metal is equal to the heat gained by water.

Since, heat lost by metal is equal to the heat gained by water,

Qlost = Qgain

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Q = (mass) (ΔT) (Cp)

(mass) (ΔT) (Cp) = (mass) (ΔT) (Cp)

After mixing both samples, their temperature changes to 27°C.

It implies that , water sample temperature changed from  22°C to 27°C and metal sample temperature changed from 73°C to 27°C.

Since, Specific heat of water = 4.184 J/g°C

Let Cp be the specific heat of the metal.

Substituting values,

(13)(73°C - 27°C)(Cp) = (60)(27°C - 22℃)(4.184)

By solving, we get Cp =

Therefore, specific heat of the metal sample is 2.09899 J/g℃.

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