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2 years ago

Hello! i am a bit stumped on this question, it is on angles. have a good day!

Mathematics

1 answer:

Vinvika [58]2 years ago

8 0

Answer:

123°

Step-by-step explanation:

you can first get angle 6;

<6+<7= 180(sum of angles on a straight line)

<6=180-<7

<6=123°

now you can get angle 8;

<8=<6(vertically opposite angles)

<8=123°

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3 years ago

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andrew-mc [135]

For the reaction,

$CO(g) + H_2 O(g) = CO_2(g) + H_2(g)$

Initial concentration:

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At equilibrium:

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where x is the amount of Carbon dioxide and Hydrogen, at equilibrium.

Hence, equilibrium constant can be written as,

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→ x² = 4.24 (0.01 + x² – 0.2x)

→ x² = 0.0424 + 4.24 x² - 0.848x

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(for quadratic equation ax² + bx+c=0)

$x = \frac{( - b \: ± \: \sqrt{ {b}^{2} - 4ac) } }{2a}$

$= > x = \frac{ - ( - 0.848 \: ± \: \sqrt{( - 0.848)^{2} - 4(3.24)(0.0424) } }{2 \times 3.24}$

$= > x = \frac{ - 0.848±0.4118}{6.48}$

$x_1 = \frac{0.848 - 0.4118}{6.48} = 0.067$

$x_2 = \frac{0.848 + 0.4118}{6.48} = 0.194$

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