How many nitrogen atoms are in one molecule of (NH4)2SO4?

2H2S(g)⇌2H2(g)+S2(g),Kc=1.67×10−7 at 800∘C is carried out at the same temperature with the following initial concentrations: [H2

scoray [572]

Answer : The concentration of $S_2$ at equilibrium will be, $1.67\times 10^{-7}M$

Explanation : Given,

Equilibrium constant = $1.67\times 10^{-7}$

Initial concentration of $H_2S$ = 0.100 M

Initial concentration of $H_2$ = 0.100 M

Initial concentration of $S_2$ = 0.00 M

The balanced equilibrium reaction is,

$2H_2S(g)\rightleftharpoons 2H_2(g)+S_2(g)$

Initial conc. 0.1 0.1 0

At eqm. (0.1-2x) (0.1+2x) x

The expression of equilibrium constant for the reaction will be:

$K_c=\frac{[H_2]^2[S_2]}{[H_2S]^2}$

Now put all the values in this expression, we get :

$1.67\times 10^{-7}=\frac{(0.1+2x)^2\times (x)}{(0.1-2x)^2}$

By solving the term 'x' by quadratic equation, we get two value of 'x'.

$x=1.67\times 10^{-7}M$

Concentration of $S_2$ at equilibrium = $x=1.67\times 10^{-7}M$

Therefore, the concentration of $S_2$ at equilibrium will be, $1.67\times 10^{-7}M$

6 0

4 years ago

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An alpheid shrimp digs and maintains a deep burrow. While underground, the shrimp is safe. Above ground, it is vulnerable to pre

bekas [8.4K]

Answer:

ase of convenience, since the beneficiary by having a burrow and the shrimp benefits from knowing that there are predators nearby.

Explanation:

This exercise asks to study the dependence between two animals, the shrimp and the puffer fish.

Two types of dependency are defined:

* Complete. What is when one animal lives off the other

* Convenience if one animal does not live on the other

In this case, both the shrimp and the predator do not live on each other, since they feed independently.

So it is a case of convenience, since the beneficiary by having a burrow and the shrimp benefits from knowing that there are predators nearby.

The correct answer is: the balloon benefits by getting a burrow to live in and the shrimp knows when predators are nearby.

3 0

4 years ago

A circular loop of wire lies in the plane of your screen. An increasing magnetic field (produced by another source) points out o

Rashid [163]

Answer:

clockwise direction

Explanation:

Direction of induced current is found with the help of Lenz's law . According to this law , the direction of induced current is such that it tries to neutralize or oppose the reason which creates this current .

In the given case , magnetic field is towards the viewer of the screen and it is increasing , so the induced current will have to create magnetic field in opposite to it . It means magnetic field will be created towards the screen into it . So the current will be induced in clockwise direction . This current will create magnetic field into the screen which will oppose increasing magnetic field out of screen .

7 0

3 years ago

Which of the following statements about Ohm's Law is true? A. Increasing the voltage decreases current. B. Keeping the same volt

Luden [163]

The correct answer is option D

The Ohm's Law states that current passing through a conductor is directly proportional to the voltage across the conductor.

Current =voltage/ resistance

The resistance causes hindrance in the path of the current and does not allows it to flow so, we must reduce the resistance to increase the flow of current in the conducting wire.

6 0

3 years ago

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A 7.0 kg box is at rest on a table. The static friction coefficient jis between the box and table is 0.40, and

Neko [114]

Answer:

A m 23 3.3 32 m 0.37

Explanation:

So ur still thinking of me Just like I know you should. I cant not give you everything You know I wish I could.

8 0

3 years ago