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3 years ago

Please help!!

1 answer:

4 0

Im answering question 2
Because it increases the kinetic energy of reactants and so the frequency of collision between reactants. Thus, provided the temperature is not too high to lead to denaturation of reactants, increase in temperature increases the rate of reaction

And for ques. 7:
It gets affected when gaseous reactants in which products formed have less volume than reactants, so increase in pressure increases the rate of reaction

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What is the maximum pressure at which solid CO2 (dry ice) can be converted into CO2 gas without melting?

max2010maxim [7]

Answer:

Explanation:

The triple point of carbon dioxide is 5.11 atmosphere at -56.6 degree celsius . At pressure greater than 5.11 , solid carbon dioxide liquefies , as it is warmed. At pressure lesser than 5.11 atmosphere , it will go into gaseous state without liquefying . Excessive pressure helps liquification process.

So maximum pressure required is 5.11 atmosphere. Beyond this pressure , solid CO2 will liquify.

3 0

3 years ago

A compound has a molar mass of 100 g/mol and the percent composition (by mass) of 65.45% C, 5.45% H, and 29.09% 0. Determine the

coldgirl [10]

Answer:

B) C3H3O and C6H6O2

Explanation:

Given data:

Molar mass of compound = 100 g/mol

Percentage of hydrogen = 5.45%

Percentage of carbon = 65.45%

Percentage of oxygen = 29.09%

Empirical formula = ?

Molecular formula = ?

Solution:

Number of gram atoms of H = 5.45 / 1.01 = 5.4

Number of gram atoms of O = 29.09/ 16 = 1.8

Number of gram atoms of C = 65.45 / 12 = 5.5

Atomic ratio:

C : H : O

5.5/1.8 : 5.4/1.8 : 1.8/1.8

3 : 3 : 1

C : H : O = 3 : 3 : 1

Empirical formula is C₃H₃O.

Molecular formula:

Molecular formula = n (empirical formula)

n = molar mass of compound / empirical formula mass

Empirical formula mass = 12×3 + 1.01 ×3 + 16×1 = 55.03

n = 100 / 5503

n = 2

Molecular formula = n (empirical formula)

Molecular formula = 2 (C₃H₃O)

Molecular formula = C₆H₆O₂

3 0

2 years ago

What’s the relationship between temperature and motion

kifflom [539]

The relationship between the two is that the higher the molecular motion is, the higher the temperature is.

7 0

3 years ago

Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the

borishaifa [10]

Answer:

Kc = [C2H5OH]/{[C2H4][H2O]}

[H2O] = [C2H5OH]/{[C2H4] x Kc}

[H2O] = 1.69/(0.015 x 9.0 x 10^3) = 0.013 M

Explanation:

Kc is the equilibrium constant, it is egal to the product of the equilibrium concentration of the product dived by the product of the equilibrium concentration of the reactants.

with that formula and what is given, male the equilibrium concentration of H2O the subject of the formula and calculate its concentration by substituting given values.

5 0

3 years ago

Using the data below, what conclusion could you draw?

Oksi-84 [34.3K]

Based on the data provided, the mass of the object is inversely proportional to acceleration and directly proportional to the time taken to cover the distance.

<h3>How does the mass of a object affect its acceleration?</h3>

Given that the force applied on an object is constant, the acceleration of the object is inversely proportional to the mass of the object.

According to the Newton's second law of motion, the acceleration of an object is inversely proportional to the mass of the object and directly proportional to the force and takes place in the direction of the applied force.

Based on the data provided, the more mass the car has, the more time it takes to complete the distance.

Therefore, it can be concluded that the mass of the object is inversely proportional to acceleration and directly proportional to the time taken to cover the distance.

Learn more about mass and acceleration at: brainly.com/question/14344386

4 0

2 years ago