Alexandra decides to climb Mt. Krumpett, which is 5000 m high. She determines that this will require a total of 3600 kcal of energy for the trip. For her food supply, she decides to take nutrition bars. The label states that each bar contains 50 g of carbohydrates, 10 g of fat, and 40 g of protein. How many Nutrition Bars does she need?

The answer to your question is 8 bars

Explanation:

Data

Total energy = 3600 kcal

Content of a bar     50 g Carbohydrates, 10 g of fat and 40g of proteins

amount of energy of Fats          8.8 kcal/g

amount of energy of Proteins and carbohydrates  4 kcal/g

Process

1.- Calculate the energy of each nutrient in the bar

50 g x 4 kcal/g = 200 kcal

10 g x 8.8 kcal/g = 88 kcal

40 g x 4 kcal/g = 160 kcal

Total energy in a bar = 200 + 88 + 160

                                   = 448 kcal

2.- Calculate the number of bars needed

     # of bars = 3600 kcal/448 kcal

     # of bars = 8 bars

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%

a chemical reaction happens

explanation: