The escape of gas through a small hole in a container

Answers

Answer 1

Answer: The escape of gas through a small hole in a container is called effusion. This phenomenon happens when the diameter of the hole is small enough compared to the mean free path of the gas particles. This is governed by Graham's Law which states that the rate of effusion is inversely proportional to the molecular weight of the gas.

Answer 2

Answer:

Answer:effusion

Explanation:

Related Questions

Show the formulas of the reactants
Which of the following are examples of cations? A. SO42- B. HCO3- C. Cl- D. HPO42- E. Ca2+
How many total electrons can be contained in the 4d sublevel? 261014
What would happen to the ratio of copper to iron if you had placed more nails in the beaker ?
What element is found in amino acid that isn’t found in simple sugars like glucose or fructose?

Antacids work to relieve stomach acids because of which of the following types of reactions? A) decomposition
B) double-displacement
C) synthesis
D) single-displacement

Answers

Answer: The correct answer is Option B.

Explanation:

Decomposition is a type of chemical reaction in which larger compound breaks down into two or more smaller compounds.

$AB\rightarrow A+B$

Double displacement reactions is defined as the chemical reaction in which exchange of ions takes place.

$AB+CD\rightarrow AD+CB$

Synthesis reaction is a type of reaction in which two or more smaller compounds combines to form a single large compound.

$A+B\rightarrow AB$

Single displacement reaction is a type of reaction in which a more reactive metal displaces a less reactive metal from its chemical reaction.

$A+BC\rightarrow AC+B$

In stomach, an acid is present known as hydrochloric acid and to neutralize its effect, antacid is taken which has $CaCO_$ as a component.

The reaction between HCl and $CaCO_3$ is a type of neutralization reaction and it is a type of double displacement reaction.

The equation between the two follows:

$CaCO_3+HCl\rightarrow CaCl_2+H_2O+CO_2$

Hence, the correct answer is Option B.

Which of the following is not an example of a mineral crystal shape? A. Calcite
B. Kryptonite
C. Quartz
D. Pyrite

Answers

B. Kryptonite. The reason for this is that it is a nonexistent compound, or if it exists it is manmade and only able to survive for a few second. The suffix -tie indicates that is a bonded with oxygen, which, since Krypton is a noble gas, is impossible. also, crystals are formed from ionic bonds, and since both krypton and oxygen are non-metals, a bond between them would be covalent.

Which best describes a chain reaction associated with a nuclear reaction? Neutrons released during a fusion reaction cause other nuclei to fuse. Neutrons released during a fission reaction cause other nuclei to split. Helium nuclei released during a fission reaction cause other nuclei to split. Helium nuclei released during a fusion reaction cause other nuclei to fuse.

Answers

The statement that describes a chain reaction brought about by a nuclear reaction is "neutrons released during a fission reaction cause other nuclei to split." This is applicable to fission reactions only wherein atoms split and produce neutrons that also cause further atoms to split, thus creating a chain or series of reactions.

Answer:

Explanation:

Molecular bonding cannot occur without..electrons, sunlight, protons, or neutrons?

Answers

Answer:

Molecular bonding cannot occur without electrons.

Explanation:

In order to be 100% correct, the answers should be electrons, protons and neutrons. Since moleculas are formed by atoms and atoms are formed by electrons protons and neutrons.

However, if we consider only the bonding itself, the most important atomic particle is the electron. Molecular or convalent bonding happens when atoms share electrons pairs to reach stability.

Elections
Molecular bonding occours when atoms share electrons

a) NaClO3 -> NaCl + O2------------------------DESCOMPOSICION b) HNO3 +Fe -> H2 + Fe (NO3)2------------SIMPLE SUSTITUCION c) Kl + Pb (NO3)2 -> Pbl2 + KNO3--------DOBLE SUSTITUCION d) C + O2 -> CO2-----------------------COMBINACION o SINTESIS e) Ca(HCO3)2 -> CaCO3 + CO2 + H2O--no estoy seguro pero en todo caso DESCOMPOSICION

Answers

a) 2 NaClO₃= 2 NaCl + 3 O₂ ( decomposition )

b) 2 HNO₃ + Fe = H₂ + Fe(NO₃)₂ ( single replacement )

c) 2 Kl + Pb(NO₃)₂ -> Pbl₂ + 2 KNO₃ ( double replacement )

d) C + O₂ -> CO₂ ( synthesis )

e) Ca(HCO₃)₂ = CaCO₃ + CO₂ + H₂O ( decomposition)

hope this helps!

What is 19 degrees Celsius in Fahrenheit?

Answers

ºF = ºC x 1.8 + 32

ºF = 19 x 1.8 + 32

ºF = 34.2 + 32

= 66.2ºF

hope this helps!

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