1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
bixtya [17]
3 years ago
6

If He(g) has an average kinetic energy of 4790 J/mol under certain conditions, what is the root mean square speed of Cl2(g) mole

cules under the same conditions?
Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
7 0

We need to know the root mean square speed of Cl₂ molecule.

The root mean square speed of Cl₂ molecule is:3.67 X 10⁴ cm/sec.

Average kinetic energy= \frac{3}{2}RT, where R=Molar gas constant and T=absolute temperature in Kelvin.

Given, average kinetic energy= 4790 J/mol, R= 8.314 J/mol/K

So, T= \frac{4790 X 2}{3 X 8.314}

T=384.09 K

Root mean square velocity= \sqrt{\frac{3RT}{M} }

For, Cl₂ molecule, M= 71 g/mol, T=384.09 K (as condition is same as previous)

So, Root mean square velocity= \sqrt{\frac{3 X 8.314 X 10^{7} X 384.09}{71} }=3.67 X 10⁴ cm/sec

Hence, Root mean square velocity= 3.67 X 10⁴ cm/sec.

You might be interested in
How many hours will it take for the concentration of methyl isonitrile to drop to 14.0 %% of its initial value?
tiny-mole [99]

This is an incomplete question, here is a complete question.

The rearrangement of methyl isonitrile (CH₃NC) to acetonitrile (CH₃NC) is a first-order reaction and has a rate constant of 5.11 × 10⁻⁵ s⁻¹ at 472 K. If the initial concentration of CH₃NC is 3.00 × 10⁻² M :

How many hours will it take for the concentration of methyl isonitrile to drop to 14.0 % of its initial value?

Answer : The time taken will be, 10.7 hours

Explanation :

Expression for rate law for first order kinetics is given by:

t=\frac{2.303}{k}\log\frac{a}{a-x}

where,

k = rate constant  = 5.11\times 10^{-5}s^{-1}

t = time passed by the sample  = ?

a = let initial amount of the reactant  = 100

a - x = amount left after decay process = 14 % of 100 = 14

Now put all the given values in above equation, we get

t=\frac{2.303}{5.11\times 10^{-5}}\log\frac{100}{14}

t=38482.72s=\frac{38482.72}{3600}=10.7hr

Therefore, the time taken will be, 10.7 hours

7 0
3 years ago
How many significant digits are in the volume measurement 0.010 mL? A) 1 B) 2 C) 3 D) 4 E) none of the above
fgiga [73]

Answer:

The correct answer is option B.

Explanation:

Significant figures :These are figures in a number which expresses the value of the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

Significant digits in the volume measurement 0.010 mL are:

0.0\bar{10} = 2 significant figures

  • All non-zero numbers are always significant.
  • All zero’s preceding the first integers are never significant.
  • All zero’s after the decimal point are always significant.
6 0
3 years ago
If charge on only one object is tripled, determine the new force between them:
Allisa [31]

Answer:

+3·F

Explanation:

The number of objects in the given system = 2 objects

The charge on each object are; q₁ = -Q, q₂ = -Q

The force acting between the objects = +F

The distance between the objects = 2·d

The formula for the force acting between two charged particles is given as follows;

F=K \times \dfrac{q_{1} \times q_{2}}{r^{2}}

Therefore, we get;

F=K \times \dfrac{-Q \times -Q}{(2\cdot d)^{2}} = K \times \dfrac{Q^2}{4 \cdot d^2}

By tripling the charge, q₁, on the first object, we get;

q₂ = 3 × (-Q)

F_2=K \times \dfrac{-3 \cdot Q \times -Q}{(2\cdot d)^{2}} = K \times \dfrac{3 \cdot Q^2}{4 \cdot d^2} = 3 \times +F = +3\cdot F

Therefore, the new force between them, F₂ = +3·F

5 0
3 years ago
What bonds are formed when electrons are shared equally?
Ratling [72]
When electrons are shared equally, the result is a metallic bond.
6 0
3 years ago
How many miles are in aluminum foil when the mass of aluminum is 9.592
AleksandrR [38]

0.36moles

Explanation:

Given parameters:

Mass of aluminium = 9.592g

Unknown:

Number of moles of Aluminium = ?

Solution:

The mass of an atom is related to the number of moles.

The number of moles of an atom is the size of a substance that contains the avogadro's number of particles.

it is related to the number of moles using the expression below;

Number of moles = \frac{mass}{molar mass}

Molar mass of aluminium= 27g/mol

Number of moles = \frac{9.592}{27}  = 0.36moles

learn more:

Number of moles brainly.com/question/1841136

#learnwithBrainly

8 0
3 years ago
Other questions:
  • Which of the following statements is true of water in a solid state? Choose all that apply.
    15·1 answer
  • What is one product of a condensation reaction between two amino acids, such as glycine and alanine?
    9·1 answer
  • What is the maximum mass of s8 that can be produced by combining 89.0 g of each reactant?
    11·1 answer
  • What forms the organic portion of soil?
    10·1 answer
  • Why are gamma rays not able to reflect off a mirrors surface
    5·2 answers
  • I neeeedddd hhheeelppppppllsssss​
    13·1 answer
  • Complete the given equation and mention whether heat is absorbed or evolved during the chemical reaction.
    11·1 answer
  • A
    11·1 answer
  • Wood is mainly cellulose, a polymer produced by plants. One use of wood is as a fuel in campfires, fireplaces, and wood furnaces
    10·1 answer
  • How many sublevels inn the second energy level?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!