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kkurt [141]
3 years ago
6

Which law states that the volume of a gas is proportional to the miles of the gas when pressure and temperature are kept constan

t ?
Boyle’s law
Dalton’s law
Charles law
Avogadro’s law
Chemistry
1 answer:
IRINA_888 [86]3 years ago
8 0

Answer:

charles law

Explanation:

a law stating that the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature.

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3 years ago
A rectangular corral of widths Lx = L and Ly = 2L contains seven electrons. What is the energy of (a) the first excited state, (
DiKsa [7]

Answer:

See explaination

Explanation:

The invariant mass of an electron is approximately9. 109×10−31 kilograms, or5. 489×10−4 atomic mass units. On the basis of Einstein's principle of mass–energy equivalence, this mass corresponds to a rest energy of 0.511 MeV.

Check attachment for further solution to the exercise.

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3 years ago
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Rzqust [24]
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6 0
3 years ago
An object that has a height of 0.4 meter is placed at a distance of 0.7 meter from a concave spherical mirror. An image is forme
julia-pushkina [17]

Answer: B. 0.6125 m

For spherical concave mirror:

Height of the object, h_o=0.4\hspace{1mm}m

Height of the image, h_i=0.35\hspace{1mm}m

Object distance, u=-0.7 m

we need to find the distance of the image, v.

These are related by the following formula:

\frac{h_i}{h_o}=-\frac{v}{u}\\ \Rightarrow v=u\times\frac{h_i}{h_o}

Insert the values:

v=-(-0.7\times\frac{0.35}{0.4})=0.6125\hspace{1mm}m

Hence, option B is the correct.


8 0
3 years ago
Read 2 more answers
The following reaction occurs in a car’s catalytic converter.
blagie [28]

Answer:The correct answer is ;

The oxidation state of nitrogen in NO changes from +2 to 0, and the oxidation state of carbon in CO changes from +2 to +4 as the reaction proceeds.

Explanation:

2NO(g)+2CO(g)\rightarrow N_2(g)+2CO_2(g)

In an oxidation recation addition of oxygen atom takes place or loss of electrons takes place.

In an reduction reaction removal of oxygen atom takes place or gain of electrons takes place.

In the given reaction , the nitrogen atom is present in +2 oxidation state in NO molecule and present in 0 oxidation state in N_2 molecule. Hence, nitrogen is getting reduced that is reduction reaction. NO is oxidizing agent

In the given reaction , the carbon atom is present in +2 oxidation state in CO molecule and present in +4 oxidation state in CO_2 molecule. Hence ,carbon is getting oxidized that is oxidation reaction. CO is a reducing agent.

8 0
3 years ago
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