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Brilliant_brown [7]
3 years ago
8

The pressure of 4.2L of nitrogen gas in a flexible container is decreased to one-half its original pressure and its absolute tem

perature is increased to double the original temperature what is tge volume now
Chemistry
1 answer:
hram777 [196]3 years ago
7 0

Answer:

V₂ = 16.8V₁

Explanation:

P₁ = 4.2L   =>   P₂ = 1/2P₁ => Decreasing Pressure => Increases Volume

V₁ = V₁      =>    V₂ = ?

T₁ = T₁       =>    T₂ = 2T₁  => Increasing Temperature => Increases Volume

P₁V₁/T₁ = P₂V₂/T₂ => V₂ = P₁V₁T₂ / P₂T₁ = (4.2P₁)(V₁)(2T₁) / (P₁/2)(T₁) = 16.8V₁

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Q 1:

Summarize the physical and chemical properties of Uranium.

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Uranium is member of Actinide series.

Its atomic number is 92.

Its atomic mass is 238.0289 amu.

Its density is 18.95 g/cm³.

Its melting point is 1132 °C.

Its boiling point is 3818 °C.

Its vanderwaal radius is 0.121 nm.

It has eleven isotopes.

It is malleable and ductile.

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It is used as primary material for the production of transuranium elements.

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It also form carbonates with oxidation state of VI.

It form halides with halogens. For example UO₂ react with HF and form UF₄.

UO₂ +  4HF  →  UF₄ + 2H₂O

It is used in bomb.

The first bomb made up of uranium was contained U-235. It start chain reaction and many uranium atom undergoes fission and produce large amount of energy.

The fertilizer such as phosphate contain large amount of uranium.

It is used in the production of steels and also in lamp.

Uranium-233 also used as nuclear fuel.

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In the lesson, many models were used to depict the atom. How does models help you understand atomic structure?

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He stated that there are negatively charged particles revolve around the nucleus with a high speed.

Atom is neutral because it consist of negative charged electrons and positive nucleus equal in magnitude and there are strong electrostatic static forced between them.

The size of atom is greater than its nucleus.

Rutherford atomic model did not explain the stability of atom and also the arrangement of electrons in orbits.

Than in 1913 Bohr proposed that electrons are revolved in stable around the nucleus. He suggested that electron's angular momentum is quantized  and due to this quantization orbits have fixed energies and electron remain in its orbit can not jump into other orbit until it gain or lost the energy.

Q 3.

How do protons, neutrons, and electrons differ in terms of their electrical charges and locations within the atom?

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The only fundamental force which is electromagnetic force is take part in chemical reaction. This force is of different types depending upon the type of bonding. For example:

In covalent bond this type of force is occur between the atoms of almost equal electronegativity.

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