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Evgesh-ka [11]
4 years ago
13

Macon is 50 miles from Atlanta. If the time of the trip increases, what happens to the speed? Question 8 options: A:It stays the

same because the distance stays the same B: It decreases C: It averages out to the same speed. D: It increase
Chemistry
2 answers:
Nitella [24]4 years ago
7 0
The answer is B - it decreases.
pashok25 [27]4 years ago
3 0

<u>Given information:</u>

Distance (d) = 50 miles

<u>To determine:</u>

The effect on speed as time increases

<u>Explanation:</u>

Speed can be defined as the ratio of the distance (d) traveled to the time (t) taken to cover that distance

Speed = distance/time -----(1)

In the given example since the distance is fixed an increase in the time of the trip will increase the denominator in equation(1) thereby decreasing the speed.

Ans (B) It decreases

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Answer:

d.  dispersion forces

Explanation:

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It is a very weak type of interaction observed between two atoms , when the electrons of the respective atoms  attain a position where they form temporary dipoles , is referred to as dispersion forces.

These are the temporary force of attraction.

These force of attraction are also referred to as induced dipole-induced dipole attraction .

These force of attraction are possible when the electrons are unsymmetrically distributed thereby induces positive and negative poles.

Similarly ,

Stearate ion and oil drop have dispersion force between them.

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Which colligative property is employed when salt is put on an icy sidewalk to melt ice?
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For the following reaction, Kc = 15 at 700 K. 2 NO(g) + Cl2(g) ⇄ 2 NOCl(g) If we have [NO] = 0.15 M, [Cl2] = 0.15 M, [NOCl] = 0.
vovangra [49]

Answer : The correct option is, The equilibrium will shift to the left until all the NOCl is used up.

Explanation :

Reaction quotient (Q) : It is defined as the measurement of the relative amounts of products and reactants present during a reaction at a particular time.

The given balanced chemical reaction is,

2NO(g)+Cl_2(g)\rightarrow 2NOCl(g)

The expression for reaction quotient will be :

Q=\frac{[NOCl]^2}{[NO]^2[Cl_2]}

In this expression, only gaseous or aqueous states are includes and pure liquid or solid states are omitted.

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

Q=\frac{(0.40)^2}{(0.15)^2(0.15)}=47.4

The given equilibrium constant value is, K=15

Equilibrium constant : It is defined as the equilibrium constant. It is defined as the ratio of concentration of products to the concentration of reactants.

There are 3 conditions:

When Q>K that means product > reactant. So, the reaction is reactant favored.

When Q that means reactant > product. So, the reaction is product favored.

When Q=K that means product = reactant. So, the reaction is in equilibrium.

From the above we conclude that, the Q>K that means product > reactant. So, the reaction is reactant favored that means reaction must shift to the reactants to be in equilibrium or shift to the left side.

Hence, the correct option is, The equilibrium will shift to the left until all the NOCl is used up.

6 0
3 years ago
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