3 years ago

How many electrons are gained in the half-reaction O2 + electrons — 202?

Chemistry

2 answers:

Likurg_2 [28]3 years ago

8 0

Answer: B. 4

Explanation:I just took it

zmey [24]3 years ago

5 0

Answer:c

Explanation:

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Explanation:

The given data is as follows.

Thickness (dx) = 0.87 m, thermal conductivity (k) = 13 W/m-K

Surface area (A) = 5 $m^{2}$ , $T_{1} = 14^{o}C$

$T_{2} = 93^{o}C$

According to Fourier's law,

Q = $-kA \frac{dT}{dx}$

Hence, putting the given values into the above formula as follows.

Q = $-kA \frac{dT}{dx}$

= $-13 W/m-k \times 5 m^{2} \times \frac{(14 - 93)}{0.87 m}$

= 5902.298 W

Therefore, we can conclude that the rate of heat transfer is 5902.298 W.

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vekshin1

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Compound B contains 92.31% carbon and 7.69% hydrogen. Determine the empirical formula of B

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Explanation:

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