Chemistry, 12.03.2020 22:03 mommyp1973

Rocks carried by the river smash together and break into smaller pieces. This process is called
abrasion
attrition
suspension
mass wasting
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Answer from: LadyHolmes67

Rocks carried by the river smash together and break into smaller pieces. This process is called attrition.

Explanation:

Rocks carried by the river smash together and break into smaller pieces. This process is called attrition.attrition is a form of coastal or river erosion, Attrition is an erosional process where rocks and pebbles are carried in the flow of a river.Abrasion occurs when the breaking waves which contain sand and larger pieces erode the shoreline or headland of the shore.When the rocks continue to collide with each other,they erode more and more, getting smaller and smaller until they are only sediment, this is when rocks that the sea is carrying The amount of attrition depends upon the number of factors: particle properties such as its size, shape, surface, hardness, and cracks. It also have environmental properties such as time, velocity, pressure, shear, and temperature.

Answer from: Quest

here we have to get the change of moles on decrease the volume of the reaction in gas phase.

the per the given options it will decrease by (d) 11-50%

we know, on decreasing the volume of the gas phase reaction the reaction moves to the product side.

the reaction: so₂cl₂ (g) = so₂ (g) + cl₂ (g) total

the moles at equilibrium: 1 - α α α = 1+α

concentrations: 1 - α α α = 1 + α

(concentration = moles/volume, as volume is 1 l)

(where α is the degree of dissociation)

now the dissociation constant in terms of concentration is :

$k_{c}$ = $\frac{[so2cl2] x [cl2]}{[so2cl2]}$

or, $\frac{\alpha ^{2} }{(1-\alpha)v }$

or, $k_{c}$ = $\frac{\alpha ^{2} }{(1-\alpha) }$ (at v = 1l)

the reaction: so₂cl₂ (g) = so₂ (g) + cl₂ (g) total

the moles at equilibrium: 1 - α α α = 1+α

concentrations: (1 - α)/0.5 α/0.5 α/0.5 = (1 + α)/0.5

thus, the dissociation constant in terms of concentration is :

$\frac{[so2cl2] x [cl2]}{[so2cl2]}$

or, $\frac{\alpha ^{2} }{(1-\alpha)0.5 }$

$\frac{\alpha ^{2} }{(1-\alpha) }$ = $\frac{\alpha ^{2} }{(1-\alpha) 0.5}$

so, the change of 1 : 1/0.5

or, 1: 2

thus it will decrease by 50%.

or, as per the given options it will decrease by 11-50%

Answer from: Quest

a corroding iron, if that's one of your choices

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Rocks carried by the river smash together and break into smaller pieces. This process is called