for a given input force, a ramp increases which of the following? A)height B)output force C)output work D) efficiency

At particular temperature, Kp = 70.9 for the following reactionN2O4(g) == 2NO2(g)1. A certain pressure of N2O4 is initially adde

elixir [45]

Answer : The partial pressure of $NO_2$ is, 12.34 atm

Explanation :

For the given chemical reaction:

$N_2O_4(g)\rightleftharpoons 2NO_2(g)$

The expression of $K_p$ for above reaction follows:

$K_p=\frac{(P_{NO_2})^2}{P_{N_2O_4}}$ ........(1)

The equilibrium reaction is:

$N_2O_4(g)\rightleftharpoons 2NO_2(g)$

Initial x 0

At eqm (x-y) 2y

Putting values in expression 1, we get:

$70.9=\frac{(2y)^2}{(x-y)}$ ..............(2)

As we are given that, 25.8 % of $N_2O_4$ remains at equilibrium. That means,

$25.8\% \times x=(x-y)$

$\frac{25.8}{100}\times x=(x-y)$

$0.258\times x=(x-y)$

$0.742x=y$ ..............(3)

Now put equation 3 in 2, we get the value of 'x'.

$70.9=\frac{(2\times 0.742x)^2}{(x-0.742x)}$

$x=8.31$

Now put the value of 'x' in equation 3, we get:

$0.742x=y$

$0.742\times 8.31=y$

$y=6.17$

Now we have to calculate the new partial pressure of $NO_2$ at equilibrium.

Partial pressure of $NO_2$ = (2y) = (2\times 6.17) = 12.34 atm

Hence, the partial pressure of $NO_2$ is, 12.34 atm

8 0

3 years ago

Which of the following answers best describes how velocity and acceleration are related

nadya68 [22]

Velocity is the speed of something given a direction acceleration is increase in rate or the speed of something

4 0

3 years ago

Read 2 more answers

What is the mass of NaCl produced when 2.0 moles of chlorine gas

sp2606 [1]

Answer:

Mass = 234 g

Explanation:

Given data:

Mass of NaCl produced = ?

Moles of chlorine = 2.0 mol

Solution:

Chemical equation:

2Na + Cl₂ → 2NaCl

now we will compare the moles of NaCl with chlorine gas.

Cl₂ : NaCl

1 : 2

2.0 : 2/1×2.0 = 4.0 mol

Mass of NaCl;

Mass = number of moles × molar mass

Mass = 4.0 mol × 58.5 g/mol

Mass = 234 g

3 0

3 years ago

All the distances are measured from the........ of spherical mirror

slega [8]

Answer:

All distances are measured from pole of the mirror

8 0

3 years ago

Explain what would happen to the air temperature at Riverdale School over the course of the

Ira Lisetskai [31]

Answer:

In each Amplify Science unit, students figure out

a phenomenon by asking questions, gathering

evidence, and coming up with an explanation of how

the phenomenon works. The Coherence Flowchart

visually represents the storyline of the unit, showing

the coherent flow of questions, evidence, and ideas that

support students as they build complex explanations

of the unit’s anchor phenomenon. The Coherence

Flowchart on the following pages (one chapter per

page) can be used to see the connections between

the questions that drive students’ experiences, the

evidence they gather, the ideas they figure out, and the

new questions that those ideas generate. The diagram

to the right explains the structure of a chapter in the

Explanation:

7 0

3 years ago