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Llana
2 months ago
14

If kc = 7.04 × 10-2 for the reaction: 2 hbr(g) ⇌h2(g) + br2(g), what is the value of kc for the reaction: 1/2 h2(g) + 1/2 br2 ⇌h

br(g)
Chemistry
1 answer:
Anarel [2.9K]2 months ago
7 0
For the reaction 2HBr(g) ⇄ H2(g) + Br2(g), the equilibrium constant Kc is expressed as [H2] [Br2] / [HBr]^2. Hence, Kc equals 7.04X10^-2 = [H2][Br2] / [HBr]^2. In the subsequent reaction, where 1/2 H2(g) + 1/2 Br2(g) ⇄ HBr, its Kc is given as [HBr] / ([H2]^(1/2)*[Br2]^(1/2)). To manipulate the first equation, we reverse it: 1/7.04X10^-2 equals [HBr]^2 / ([H2][Br2]). By taking the square root, we find that √(1/7.04X10^-2) equals [HBr] / ([H2]^(1/2)*[Br2]^(1/2)). Thus, Kc for the second reaction equals √(1/7.04X10^-2) = 3.769.
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Answer: Please see answer below

Explanation:

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(https://www.ncbi.nlm.nih.gov/books/NBK21190)[[TAG_34]][[TAG_35]][[TAG_36]]

4 0
1 month ago
A piece of lead loses 78.0 J ofheat and experiences a decrease in temperature of 9.0C the specific heat of lead is .130J/gC what
KiRa [2933]
To determine the mass of the lead piece, we use the following equation: Q(heat) = mC delta T, where Q equals 78.0 j, M is the mass we want to find, C is the specific heat capacity (0.130 j/g/C), and delta T shows the temperature difference, set at 9.0 c. Rearranging the formula to solve for M gives us M = Q / c delta T. By substituting in the values, we conclude that M = 78.0 j / (0.130 j/g/C * 9.0 C), calculating this gives us a mass of 66.7 g of lead.
3 0
1 month ago
Which of the following statements is true about the relationships between photon energy, wavelength, and frequency?
KiRa [2933]

Answer: The Answer is A.

Explanation:

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Hope this Helps!

8 0
2 months ago
The production of NOx gases is an unwanted side reaction of the main engine combustion process that turns octane, C8H18, into CO
lorasvet [2795]

Answer:

710.33 g NO2

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4 0
2 months ago
Read 2 more answers
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