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Galina-37 [17]
3 years ago
13

According to the collision theory, which is required for a high number of effective collisions? a very low amount of force from

colliding molecules a very low amount of kinetic energy from colliding molecules molecular collisions that have very specific orientations molecular collisions with energy to overcome activation energy
Chemistry
2 answers:
ra1l [238]3 years ago
5 0

Answer:

the answer is D

Explanation:

i answered c and got it wrong on edg... i hope this helps :)

neonofarm [45]3 years ago
4 0

Answer:

molecular collisions that have very specific orientations

Explanation:

  • Based on the collision theory, a high frequency of effective collision is dependent on the molecular collisions that have very specific orientations.
  • The collision theory suggests that for reactions to occur, there must collision between reacting particles.
  • The number of collision is dependent on the number of collision per unit time as well as fractions of effective collision.
  • To attain effective collision, colliding particles must be properly oriented to give the desired product.

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Why are solid less affected by pressure than liquid and gases are?
bija089 [108]

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Explanation:

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fredd [130]

Answer:

B

Explanation:

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For the simple decomposition reactionAB(g)→ A(g) + B(g)Rate =k[AB]2 and k=0.2 L/mol*s . How long will it takefor [AB] to reach 1
mixer [17]

Answer:

6.66 s will it take for [AB] to reach 1/3 of its initial concentration 1.50 mol/L.

Explanation:

Rate = k[AB]^2

The order of the reaction is 2.

Integrated rate law for second order kinetic is:

\frac{1}{[A_t]} = \frac{1}{[A]_0}+kt

Where, [A_0] is the initial concentration  = 1.50 mol/L

[A_t] is the final concentration  = 1/3 of initial concentration = \frac{1}{3}\times 1.50\ mol/L = 0.5 mol/L

Rate constant, k = 0.2 L/mol*s

Applying in the above equation as:-

\frac{1}{0.5} = \frac{1}{1.50}+0.2t

\frac{1}{1.5}+0.2x=\frac{1}{0.5}

t = 6.66\ s

<u>6.66 s will it take for [AB] to reach 1/3 of its initial concentration 1.50 mol/L.</u>

5 0
3 years ago
Calculate the specific heat capacity of the unknown metal given the
Vedmedyk [2.9K]

Answer: The specific heat capacity of the unknown metal given is 0.466 J/g^{o}C.

Explanation:

Given: Mass = 225 g

Change in temperature = 13^{o}C

Heat energy = 1363 J

The formula used to calculate specific heat is as follows.

q = m \times C \times \Delta T

where,

q = heat energy

m = mass of substance

C = specific heat

\Delta T = change in temperature

Substitute the values into above formula as follows.

q = m \times C \times \Delta T\\1363 J = 225 g \times C \times 13^{o}C\\C = \frac{1363 J}{225 g \times 13^{o}C}\\= 0.466 J/g^{o}C

Thus, we can conclude that the specific heat capacity of the unknown metal given is 0.466 J/g^{o}C.

3 0
3 years ago
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