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2 years ago

Does the reaction above satisfy the law of conservation of matter? Use details to support your work.

Physics

1 answer:

Leona [35]2 years ago

6 0

Answer:

No, the amount of matter of the reactants is not equal to the amount of matter of the products.

Explanation:

According to the conservation of matter the amount of matter of the reactants is equal to the amount of matter of the products. The given reaction is

$2H_2O_2=H_2+O_2$

In the reactant side there are $2\times 2=4$ molecules of hydrogen and $2\times 2=4$ molecules of oxygen.

In the product side there are 2 molecules of both hydgrogen and oxygen. So the reaction does not satisfy the law of conservation of mass.

The balanced reaction would be

$2H_2O_2=2H_2+2O_2$ .

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Answer:

The phase angle is 0.0180 rad.

(c) is correct option.

Explanation:

Given that,

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Using formula of impedance

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$z=\sqrt{50^2+(50\times20\times10^{-3}-\dfrac{1}{50\times20\times10^{-2}})^2}$

$z=50.00$

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Using formula of phase angle

$\theta=\cos^{-1}(\dfrac{R}{z})$

$\theta=\cos^{-1}(\dfrac{50}{50.00})$

$\theta=0.0180\ rad$

Hence, The phase angle is 0.0180 rad.

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Answer:

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