# A compressed cylinder of gas contains 45.6 mol of N2 gas at a pressure of 3.75 x 105 Pa and a temperature of 23.6°C. What volume of gas has been released into the atmosphere if the final pressure in the cylinder is 5.67 x 105 Pa? Assume ideal behavior and that the gas temperature is unchanged.

Explanation

According to the ideal gas equation:

P = Pressure of the gas = = 3675 atm     (1 kPa= 0.0098 atm)

V= Volume of the gas = ?

T= Temperature of the gas = 23.6°C = 296.6 K

R= Gas constant = 0.0821 atmL/K mol

n= moles of gas = 45.6

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

(At constant temperature and number of moles)

where,

= initial pressure of gas  =

= final pressure of gas  =

= initial volume of gas   = 0.302 L

= final volume of gas  = ?

The final volume has to be 0.199 L, thus (0.302-0.199) L= 0.102 L must  release into the atmosphere.

Therefore the answer is 0.102 L

## Related Questions

Consider an insulated container in which water (2.58 g) solidifies at 0 oC and 1 atm on the surface of a 55 g aluminum block. Assuming that the heat transfer occurs only between the water and the metal, estimate the change in temperature of the aluminum block.

We have that the change in temperature of the aluminum block.  is mathematically given as

dt=17.408C

From the question we are told

• Consider an insulated container in which water (2.58 g) solidifies at 0 oC and 1 atm on the surface of a 55 g aluminum block. Assuming that the heat transfer occurs only between the water and the metal,
• estimate the change in temperature of the aluminum block.

temperature

Generally the equation for the  Heat  is mathematically given as

Q=mL_1

Therefore

Q=(2.58(3.34))

Q=861.72J

Where

Heat Loss =Heat gain

861.72J=(55)(0.9)dt

• dt=17.408C

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17.41°C is the change in temperature of the aluminum block.

Explanation:

Latent heat of fusion water = 334 J/g

Heat required to freeze 1 gram of water = -334 J

Heat required to freeze 2.58 grams of water = Q

Heat lost by water will be equal to heat gained by the aluminum block

Formula used to calculate heat absorbed by substance:

Where:

Q = heat absorbed by substance

c = specific heat of substance

m = Mass of the substance

ΔT = change in temperature of the substance

We have :

Mass of aluminum block= m= 55 g

Heat capacity of aluminum = c = 0.9 J/g°C

Change in temperature of the aluminum block= ΔT = ?

Heat absorbed by the aluminum = Q'

17.41°C is the change in temperature of the aluminum block.

Which symbol can be used to indicate a chemical reaction that takes place in the presence of a catalyst?

Common notation is to write the reaction conditions on top of the reaction arrow. For example, the Haber Process (3H2 + N2 --> 2NH3), can use Iron as a catalyst, so Fe would be written above the reaction arrow to indicate reaction conditions. Any pressure or temperature, like the Haber process should be completed at 400-450 degrees celcius, should also be written above the arrow.

Explanation:

The water at the top of a waterfall has _____ energy. potential
kinetic
heat
metabolic

The correct answer is a = potential

Explanation:

Hello! Let's solve this!

Water on top of a waterfall has accumulated potential energy. This energy has the bodies at rest and is due to its mass, its height and the acceleration of gravity. Once the water drop begins, this potential energy becomes kinetic energy.

The correct answer is a = potential

I believe the answer is A. Potential

when you drop a block of metal into water, you find that the metal sinks. what happens if you drop a smaller block of the same metal into water?

it'll probably sink....

sink most likely ok?

Seismic waves travel at different speeds according to type. what is the speed of seismic waves from fastest to lowest? A. L waves S waves P waves

B. P waves L waves S waves

C. S waves L waves P waves

D. P waves S waves L waves

Hello!

The correct answer is: D. P waves S waves L waves.

I hope this helped you out! :)
D.P waves S waves L waves
body waves arrive before the surface waves emitted by an earthquake. These waves are of a higher frequency than surface waves.
The first kind of body wave is the P wave or primary wave. This is the fastest kind of seismic wave, and, consequently, the first to 'arrive' at a seismic station.
The second type of body wave is the S wave or secondary wave, which is the second wave you feel in an earthquake. An S wave is slower than a P wave and can only move through solid rock, not through any liquid medium.
surface waves are of a lower frequency than body waves, and are easily distinguished on a seismogram as a result. Though they arrive after body waves, it is surface waves that are almost enitrely responsible for the damage and destruction associated with earthquakes. This damage and the strength of the surface waves are reduced in deeper earthquakes.
The first kind of surface wave is called a Love wave

Californium-252 is bombarded with a boron-10 nucleus to produce another nuclide and six neutrons. what nuclide forms?

Answer: the nuclide is lawrencium-103

Using the isotopes notation it can be written as ²⁵⁶ ₁₀₃ Lr.

The number 256 is a superscript to the left of the symbol of the element (Lr) and the number 103 is a subscript to the left of the symbol

Explanation:

1) To determine the nuclide formed you have to rely in a mass and particles balance.

2) californium - 252 is the isotope has mass number 252, atomic number 98 (you obtain this information in a periodic table, remember that it is the number of protons).

The number of neutrons is determined from the formula

mass number = atomic number + number of neutrons ⇒ number of neutrons = mass number - atomic number

∴252 - 98 = 154 neutrons

3) boron - 10 nucleus has mass number 10, and atomic number 5 (from periodic table)

⇒ number of neutrons = 10 - 5 = 5.

4) Now the mass balance leads to:

mass number of californium-252 + mass number of boron-10 = unknown mass number + mass number of mass number of 6 neutrons

⇒ 252 + 10 = x + 6 ⇒ x = 252 + 10 - 6 = 256

5) Since neutrons do not change the atomic masses, number of protons, you can do this balance based on the atomic numbers (i.e. the same that number of protons):

atomic number of californium-252 + atomic number of boron - 10 = unknown atomic number

98 + 5 = A

A = 103

The element with atomic number 103 is lawrencium (Lr)

Calculate the number of neutrons: mass number - atomic number = 256 - 103 = 153.

Therefore, the new isotope is lawrencium (Lr) whith 153 neutrons.

Using the notation for isotopes the equation that show the reaction is:

²⁵² ₉₈ Cf + ¹⁰ ₅ B → ²⁵⁶ ₁₀₃ Lr + 6 ¹₀n

²⁵²Cf₉₈ + ¹⁰B₅ → ²⁵⁶Lr₁₀₃ + 6 ¹n₀
The new nuclide formed = Lawrencium - 256 = ²⁵⁶Lr₁₀₃

Which processes represent one chemical change and one physical change?
(1) freezing and melting
(2) freezing and vaporization
(3) decomposition and melting
(4) decomposition and combustion

Answer: (3) decomposition and melting

Explanation: Chemical change is one in which chemical composition of substance changes.

Physical change is one in which chemical composition of substance do not change.

Freezing is a process in which a liquid changes into solid phase when allowed to cool. Thus it is a physical change.

Melting : It is process in which a solid changes into liquid phase by providing heat. Thus it is a physical change.

Vaporization : It is process in which liquid changes into gaseous phase by providing heat. Thus it is a physical change.

Decomposition is a chemical reaction in which one substance decomposes to form two or more than two products. Thus the chemical composition change, and hence is a chemical change.

Combustion is a reaction in which a substance combines with oxygen gas to produce carbon dioxide, water and a lot of heat. Thus the chemical composition change, and hence is a chemical change.

I believe the answer is (3) since decomposition is a chemical change and melting is a physical change

What type of rock that is formed from sediments being compressed and squeezed?

The type of rock  that is formed from sediments being compressed and squeezed is called as  Sedimentary Rocks .

Explanation:

The  formation  of  Sediment rock  is carried  out  by breaking apart of other rocks ( metamorphic ,sedimentary or igneous rocks ) and compaction, recrystallization and cementation of the broken rock pieces.  Thus Sedimentary rocks are formed from broken rocks.

The root wood of sedimentary  is sediments . Formation of Sedimentary rocks are usually takes place in water.  Rivers and  streams brings sediments with their current.  When the river flow into  another river, lake or ocean, the speed of the current becomes slow. During  this  time the sediments falls out due  to gravity.  The larger sediments falls first followed lighter sediments .