Identify each event as the result of mechanical weathering or chemical weathering.

Explanation:

When chemical reactions change the chemical composition of a mineral then this process is known as chemical weathering.

In chemical weathering the particle become molecularly different  from the original rock.

Chemical weathering occurs due to the process of dissolution or oxidation.

When chemical reactions does not change the chemical composition of a mineral then this process is known as mechanical weathering.

In mechanical weathering, the smaller particles molecularly remain similar to the original rock.

Mechanical weathering occurs due to the processes like frost-wedging and plant activity.

The minerals in a marble statue react with water to form acids and pores in the structure.Chemical  weathering

A piece of rock crumbles after being constantly thrashed by strong waves.Chemical  weathering

Industrial runoff forms cracks in a rocky structure in its path.Mechanical  weathering

The rocks in a region are streaked orange after being exposed to repeated rains.Mechanical  weathering

The minerals in a marble statue react with water to form acids and pores in the structure.Chemical  weathering

A piece of rock crumbles after being constantly thrashed by strong waves.Chemical  weathering

Industrial runoff forms cracks in a rocky structure in its path.Mechanical  weathering

The rocks in a region are streaked orange after being exposed to repeated rains.Mechanical  weathering

The minerals in a marble statue react with water to form acids and pores in the structure.Chemical  weathering

A piece of rock crumbles after being constantly thrashed by strong waves.Chemical  weathering

Industrial runoff forms cracks in a rocky structure in its path.Mechanical  weathering

The rocks in a region are streaked orange after being exposed to repeated rains.Mechanical  weathering

The minerals in a marble statue react with water to form acids and pores in the structure.Chemical  weathering

A piece of rock crumbles after being constantly thrashed by strong waves.Chemical  weathering

Industrial runoff forms cracks in a rocky structure in its path.Mechanical  weathering

The rocks in a region are streaked orange after being exposed to repeated rains.Mechanical  weathering

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 :

=  

or,

or,   = (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 :

or,  

=  

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%

what's the