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Flura [38]
2 years ago
12

Confused as heck. please help!

Chemistry
1 answer:
Nitella [24]2 years ago
6 0

Answer: that all thre water cycle and C is vaporation

Explanation:

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The activation energy of a certain uncatalyzed reaction is 64 kJ/mol. In the presence of a catalyst, the Ea is 55 kJ/mol. How ma
Ksivusya [100]

Answer:

About 5 times faster.

Explanation:

Hello,

In this case, since the Arrhenius equation is considered for both the catalyzed reaction (1) and the uncatalized reaction (2), one determines the relationship between them as follows:

\frac{k_1}{k_2}=\frac{Aexp(-\frac{Ea_1}{RT} )}{Aexp(-\frac{Ea_2}{RT})}  \\\frac{k_1}{k_2}=\frac{exp(-\frac{Ea_1}{RT} )}{exp(-\frac{Ea_2}{RT})}

By replacing the corresponding values we obtain:

\frac{k_1}{k_2}=\frac{exp(-\frac{55000J/mol}{8.314J/molK*673.15K} )}{exp(-\frac{64000J/mol}{8.314J/molK*673.15K} )} =4.8

Such result means that the catalyzed reaction is about five times faster than the uncatalyzed reaction.

Best regards.

4 0
3 years ago
How many moles of nitrogen gas are there in 16.8 L of this gas at STP?
sweet-ann [11.9K]
According to Avogadro's Law, same volume of any gas at standard temperature and pressure will occupy same volume. And one mole of any Ideal gas occupies 22.4 dm³ (1 dm³ = 1 L).

Data Given:

                  n = moles = ?
                  V = Volume = 16.8 L

Solution:
               
As 22.4 L volume is occupied by one mole of gas then the 16.8 L of this gas will contain....

                           = ( 1 mole × 16.8 L) ÷ 22.4 L
                    
                           = 0.75 moles

Result:
           
16.8 L of Nitrogen gas will contain 0.75 moles at standard temperature and pressure.
4 0
3 years ago
Which of the following best describes the role of the Supreme Court in protecting Americans' civil rights and liberties?
Citrus2011 [14]

Answer:

OB

Explanation:

 it protects civil rights and liberties by striking down laws that violate the Constitution.

8 0
3 years ago
Help ASAP!! Based on the chemical reaction shown, the reactants and products are best classified as
AleksAgata [21]

Answer:

the first one

Explanation:

as it contains in the product N so its the forst

3 0
3 years ago
What is the answer ?
Blizzard [7]

Answer: 4. A solution in which methyl orange is red

Explanation:

The others solutions are in their basic form while methyl orange is in it’s acidic form when red.

7 0
2 years ago
Read 2 more answers
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