Cylinder A and Cylinder B are sealed, rigid cylinders with movable pistons. Each cylinder contains 500. milliliters of a gas sample at 101.3 kPa and 298 K. Cylinder A contains H2 and cylinder B contains N2. Explain, in terms of collisions between gas molecules and the walls of the container, why pushing the movable piston farther into cylinder B at constant temperature would increase the pressure of the N2 gas.
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Answer:
The pressure of N₂ gas in cylinder B when compressed at constant temperature increases due to the increase in the frequency of collision between the gas molecules with themselves and with the wall of their container caused by a decrease in volume of the container.
Explanation:
Gas helps to explain the behavior of gases when one or more of either temperature, volume or pressure is varying while the other variables are kept constant.
In the gas cylinder B, the temperature of the given mass of gas is kept constant, however, the volume is decreased by pushing the movable piston farther into the cylinder. According to the gas law by Robert Boyle, the volume of a given mass of gas is inversely proportional to its pressure at constant temperature. This increase in pressure is due to the increase in the frequency of collision between the gas molecules with themselves and with the wall of their container caused by a decrease in volume of the container. As the cylinder becomes smaller, the gas molecules which were spread out further become more packed closely together, therefore, their frequency of collision increases building up pressure in the process.
In terms of collisions between gas molecules and the walls of the container, the reason why pushing the movable piston farther into cylinder B at constant temperature would increase the pressure of the N2 gas is due to the fact that;
The movement of the piston farther into the cylinder would lead to an increase in the number of collisions per unit area between the N2(nitrogen) molecules and the internal walls of the cylinder. The movement described above would lead to creation of greater pressure because the more the collisions, the higher the pressure.The image showing the two cylinders are missing and so i have attached it.
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New colors produced when any two of the primary colors of pigment are mixed; red, green, and blue
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Answer:
A simulated example of additive color mixing. Additive primaries act as sources of light. The primaries red, green, and blue combine pairwise to produce the additive secondaries cyan, magenta, and yellow. Combining all three primaries (center) produces white.
when all of the primary colors are mixed it makes black
Explanation:
A hydrate of CoCl2 has a mass of 15.80 g before heating. After heating the mass of the anhydrous compound is found to be 9.32 g explain how you would determine the formula of the hydrate and then write out the full name of the hydrate
Answers
Explanation:
Molar mass of Cobalt (II) chloride = 129.8g/mol
Moles of CoCl2 = 9.32/129.8 = 0.0718mol
Mass of H2O lost after heating = 15.80 - 9.32 = 6.48g
Moles of H2O = 6.48/18 = 0.36mol
Mole ratio of CoCl2 : H20
= 0.0718mol : 0.36mol
= 1 : 5
Hence the formula is CoCl2 . 5H2O, which is Copper (II) chloride pentahydrate.
As the sun sets, the temperature of the room decreases. Explain how this affects the particle motion of the gas particles in the room. Be sure to include collisions, kinetic energy, pressure, and thermal energy in your answer.
Answers
Answer:
Heres a very LONG answer-
The real answer:
Its in the kinetic-molecular theory, the temperature of a substance is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles.
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Answers
Answer:
0.768 m
Explanation:
1 cm = 0.01 m
76.8 cm * 0.01 m/ 1 cm
0.768 m
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Answer: they are called electrical conductors.
Explanation:
Some materials let electricity pass through them easily. These materials are known as electrical conductors. Many metals, such as copper, iron and steel, are good electrical conductors. That is why the parts of electrical objects that need to let electricity pass through are always made of metal.
Answer:
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Explanation:
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Explanation: i hope it helps i got a little help from a friend
Why water in considered as compound?
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Answer with Explanation:
Water is a compound because it consists of two types of atoms (Hydrogen and Oxygen) that are chemically bonded. An "element" only consists of one type of atom, therefore, water is not an element but a compound. Its chemical formula is: [tex]H_{2} O[/tex]. This means that water consists of 2 atoms of Hydrogen that are bonded to an atom of Oxygen. Take note that a compound is different compared to the elements that it is made of. For example, water is essentially liquid in its form but it is different from the atoms of Hydrogen and Oxygen, which are gas in form.
Answer:
Water is a compound. It contains more than one element: hydrogen and oxygen atoms are joined together; as illustrated in the video clip Elements and Compounds, above. ... Water is not simply a mixture of hydrogen and oxygen; it contains hydrogen and oxygen atoms linked together in an ordered way.
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Answers
C)
Then it is
)A
Im doing this for class too bruh
How many moles in 435 liters of Krypton gas at STP?
Answers
19.4 mol Kr
General Formulas and Concepts:Chemistry
Stoichiometry
Using Dimensional AnalysisGas Laws
STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 KMath
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right Explanation:Step 1: Define
435 L Kr at STP
Step 2: Identify Conversions
[STP] 22.4 L = 1 mol
Step 3: Convert
[tex]435 \ L \ Kr(\frac{1 \ mol \ Kr}{22.4 \ L \ Kr} )[/tex] = 19.4196 mol Kr
Step 4: Check
We are given 3 sig figs. Follow sig fig rules and round.
19.4196 mol Kr ≈ 19.4 mol Kr
Which of these chemical equations demonstrates the law of conservation of mass?
F. C3H8 + 4 O2 → 3 CO2 + 4 H2O
G. 2 H2 + O2 à 2 H2O
H. H + O à H2O
J. Mn(OH)2 + H3PO4 à 2Mn3(PO4)2 + 2H2O
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Explanation:
What group is not assigned electron affinities on the periodic table?
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Answer:
Explanation:
halogen group
Electron affinities are negative numbers because energy is released. The elements of the halogen group (Group 17) gain electrons most readily, as can be seen from their large negative electron affinitie
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tbh i liked how u ghosted me
Explanation:
does the state of matter change in sugar solution
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Answer:
yes
Explanation:
the sugar was a solid but after being dissolved in a liquid it changed state
A working model used to test a design is called a
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Answer:
A working model used to test a design is called a
stop
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Answer:
5.70×10^-11 m
Explanation:
how different are the duck leeches offsprings from their parents
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2. How many liters of propane gas (C3H8) will undergo complete combustion with 34.0 L of oxygen gas? ___ C3H8 (g) + ___ O2 (g → ___ CO2 (g + ___ H2O(g
Answers
Answer:
6.8 liters of propane gas will undergo a complete combustion with 34.0 L of oxygen gas.
Explanation:
Given;
combustion reaction of propane and oxygen;
C₃H₈ + O₂(g) → CO₂(g) + H₂O(g)
Balance the chemical reaction as follows;
C₃H₈ + 5O₂(g) → 3CO₂(g) + 4H₂O(g)
From the balanced equation;
1 mole of C₃H₈ ---------------- 5 moles of 5O₂(g)
x Liters of C₃H₈ ----------------- 34.0 Liters of O₂(g)
x = 34 liters / 5
x = 6.8 liters
Therefore, 6.8 liters of propane gas will undergo a complete combustion with 34.0 L of oxygen gas.
What are the main functions of the human skeletal system?
A To support the body, protect the organs, produce blood cells, and store calcium.
To regulate the composition of body fluids by removing metabolic wastes and retaining a balance of water, salt, and other
nutrients
OcTo regulate and maintain bodily functions by producing hormones and releasing them into the bloodstream.
D. To enable the diffusion of oxygen into the bloodstream and the removal of carbon dioxide from the bloodstream.
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Answer:
The answer is A.........
Answer:
It´s letter A
Explanation:
Radio waves carry information from
A. antenna to antenna.
B. amplitude to frequency.
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3. Hydrogen reacts with nitrogen to produce ammonia according to the equation:
3H2(g) + N2(g) 2NH3(g)
Determine how much ammonia would be produced if 100g of N2 reacts?
Answers
Mass of ammonia produced : 121.38 g
Further explanationGiven
Reaction
3H₂(g) + N₂(g) ⇒ 2NH₃(g)
100g of N₂
Required
Ammonia produced
Solution
mol of N₂ :
[tex]\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{100}{28}\\\\mol=3.57[/tex]
From the equation, mol ratio of N₂ and NH₃ = 1 : 2, so mol NH₃ :
[tex]\tt \dfrac{2}{1}\times 3.57=7.14~moles[/tex]
mass of NH₃(MW=17 g/mol) :
[tex]\tt mass=mol\times MW\\\\mass=7.14\times 17\\\\mass=121.38~g[/tex]
Can someone tell me how to identify the number of significant figures?
I solved a molarity word problem and I got the answer 1.138 moles. I need to find the number of significant figures for this number. If you could use 1.138 as an example, that'd be great.
Answers
Answer:
Non-zero digits are always significant.
Any zeros between two significant digits are significant.
A final zero or trailing zeros in the decimal portion ONLY are significant. If a number ends in zeros to the right of the decimal point, those zeros are significant.
Explanation:
1.138 has 4 significant figures, which are 1, 1, 3 and 8. The numbers after the decimal point are decimals and are significant figures.
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Explanation bababoey
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Answer:
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Explanation:
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Which of the following is not a sign that chemical reaction has taken place?
a. temperature change
b. formation of a liquid
c. color change
d. formation of a gas
Answers
Answer:
a
Explanation:
uh process of elimination
Temperature change, phase change to liquid or gas are all physical changes not chemical reactions. A color change indicates a chemical reaction has taken place.
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Answer:
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Explanation:
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Answer:
It is balanced.
Explanation:
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