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3 years ago

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Calculate the enthalpy of the reaction 2no(g)+o2(g)→2no2(g) given the following reactions and enthalpies of formation: 12n2(g)+o

2(g)→no2(g), δh∘a=33. 2 kj 12n2(g)+12o2(g)→no(g), δh∘b=90. 2 kj.

1 answer:

e-lub [12.9K]3 years ago

5 0

I don’t want you going back in the front door and I’m going to try calling it

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It’s takes 5100 Nof force to accelerate a Ford Mustang 3 m/s2 what is the mass of the car

xxMikexx [17]

The force is 5100 N which is accelerating a Ford Mustang. The mass of the car is 1700 kg.

<h3>What is force?</h3>

A force is an influence that can alter an object's motion. A force can modify the velocity of a mass item. Force is calculated in Newton.

In physics, mass is a quantitative measure of inertia, which is a fundamental property of all matter. Mass is measured in kilograms and grams.

The force is given as 5100 N

The acceleration is 3 m/s

The mass is to be calculated

F = ma

m = F / a

m = 5100 / 3

m = 1700 kg

Therefore, the mass of the car is 1700 kg.

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1 year ago

Point (20, 5) is on the graph of inverse variation. Which of the following ordered pair is on the graph?.

Bess [88]

The point $(10, 10)$ is on the graph.

<h3>Procedure - Inverse variation</h3><h3 /><h3>Inverse variation model</h3><h3 />

An <em>inverse</em> variation is represented by the following formula:

$y = \frac{k}{x}$ (1)

Where:

$x$ - Independent variable.
$y$ - Dependent variable.
$k$ - Proportionality constant.

We can eliminate the proportionality constant by creating the following relationship:

$x_{1}\cdot y_{1} = x_{2}\cdot y_{2}$ (2)

<h3>Determination of another point</h3>

If we know that $x_{1} = 20$ , $y_{1} = 5$ and $x_{2} = 10$ , then the remaining variable is:

$y_{2} = \left(\frac{x_{1}}{x_{2}} \right)\cdot y_{1}$

$y_{2} = \left(\frac{20}{10} \right)\cdot (5)$

$y_{2} = 10$

The point $(10, 10)$ is on the graph. (Correct choice: C) $\blacksquare$

To learn more on inverse variations, we kindly invite to check this verified question: brainly.com/question/4838941

<h3>Remark</h3>

The statement is incomplete. Complete form is described below:

<em>Point </em> $(20, 5)$ <em> is on the graph of an inverse variation. Which of the following ordered pair is on the graph? </em><em>A.</em><em> </em> $(4,1)$ <em>, </em><em>B.</em><em> </em> $(2, 25)$ <em>, </em><em>C.</em><em> </em> $(10, 10)$ <em>, </em><em>D.</em><em> </em> $(16, 4)$ <em>.</em>

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seraphim [82]

Bl4 bsl requires the use of a supply line respirator or all work within a sealed totally enclosed glove box.

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