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muminat
3 years ago
15

Which substance will retain the largest amount of energy from the sun

Chemistry
2 answers:
insens350 [35]3 years ago
8 0
It'd be the grass, becasue as you know plants provide oxygen. Need lots of energy. 

<span>C. grass
Hope this helps.</span>
Vladimir79 [104]3 years ago
3 0
Hello there.

<span>Which substance will retain the largest amount of energy from the sun

</span><span>C. grass
</span>
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Answer:

19.8 kg of C₂H₂ is needed

Explanation:

We solve this by a rule of three:

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(95.5×10⁴ kJ . 1) /1251kJ = 763.4 moles of C₂H₂

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If we convert the mass from g to kg →  19848 g . 1kg / 1000g = 19.8 kg

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2 years ago
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Answer is: 5,75·10⁻¹.
Kf = 2,3·10⁶ 1/s.
K = 4,0·10⁸ 1/s.
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K - </span><span>equilibrium constant.
Kr - </span><span>reverse rate constant.
</span>Since both Kf and Kr are constants at a given temperature, their ratio is also a constant that is equal to the equilibrium constant K.<span>
K = Kf/Kr.
Kr = Kf/K = </span>2,3·10⁶ 1/s ÷ 4,0·10⁸ 1/s = 5,75·10⁻¹.

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