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2 years ago

Consider the following equilibrium system:

1 answer:

4 0

At constant temperature and volume, more I2 is added to the above equilibrium. A new state of equilibrium results from a shift to the:

Left with a net decrease in [H2].

Hence, Option A is correct .

What do you mean by equilibrium in chemistry?

Chemical equilibrium, can be defined as the reversible chemical reaction in which there is no net change in the amounts of reactants and products. Types of chemical equilibrium are Homogeneous Equilibrium and Heterogeneous Equilibrium

It plays a important role in chemical reaction

It tells us about direction of chemical reaction.
It leads in setting up of certain desired products.
It helps in calculation of composition of final reaction

Rate of forward reaction = Rate of backward reaction.

Hence , At constant temperature and volume, more I2 is added to the above equilibrium. A new state of equilibrium results from a shift to the:

Left with a net decrease in [H2].

Hence, Option A is correct .

To know more about Equilibrium from the given link

brainly.com/question/13414142

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Nitrogen <---- Itś at 73% of Earths atmosphere.

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Where would a primary producer be located in a food chain?

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4 years ago

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A serving of soup contains 5.0 g of fat, 20.0 g of carbohydrates, and 3.0 g of protein. Determine how many kilocalories (kcal) a

marta [7]

Answer: The amount of kilocalories contained in the given serving of soup is 0.137 kCal

Explanation:

As per the USDA:

Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.

We are given

Mass of fat in the soup serving = 5.0 g

Mass of carbohydrates in the soup serving = 20.0 g

Mass of protein in the soup serving = 3.0 g

Conversion factor used: 1 kCal = 1000 Cal

Applying unitary method:

For Fat:

1 gram of fat provides 9 calories

So, 5.0 gram of fat will provide = $\frac{9}{1}\times 5.0=45Cal=0.045kCal$

For Carbohydrates:

1 gram of carbohydrates provides 4 calories

So, 20.0 gram of carbohydrates will provide = $\frac{4}{1}\times 20.0=80Cal=0.080kCal$

For Proteins:

1 gram of proteins provides 4 calories

So, 3.0 gram of fat will provide = $\frac{4}{1}\times 3=12Cal=0.012kCal$

Total kilocalories per serving = [0.045 + 0.080 + 0.012] kCal = 0.137 kCal

Hence, the amount of kilocalories contained in the given serving of soup is 0.137 kCal

4 0

3 years ago

A sample of neon gas at 1.20 atm compresses from 0.250 L to 0.125 L. If the temperature remains constant, what is the final pres

laila [671]

Answer:

D. 2.40 atm

Explanation:

At constant temperature and number of moles, using Boyle's law

${P_1}\times {V_1}={P_2}\times {V_2}$

Given ,

V₁ = 0.250 L

V₂ = 0.125 L

P₁ = 1.20 atm

P₂ = ? atm

Using above equation as:

${P_1}\times {V_1}={P_2}\times {V_2}$

${1.20\ atm}\times {0.250\ L}={P_2}\times {0.125\ L}$

${P_2=\frac{{1.20}\times {0.250}}{0.125}\ atm$

${P_2}=2.40 atm$

Answer:- D. 2.40 atm

7 0

3 years ago