The mass of air in room as per given density is 53.2 kg.
To calculate the mass of air contained in a room, we can use the formula:
mass = density x volume
Here, the given density of air is 1.29 g/dm³ at 25°C. We can convert the dimensions of the room to decimeters (dm) by multiplying by 10:
Length = 2.50 m × 10 = 25 dm
Width = 5.50 m × 10 = 55 dm
Height = 3.00 m × 10 = 30 dm
Now, we can calculate the volume of the room by multiplying the three dimensions:
Volume = length x width x height
Volume = 25 dm x 55 dm x 30 dm
Volume = 41,250 dm³
Finally, we can use the formula to calculate the mass of air:
mass = density x volume
mass = 1.29 g/dm³ x 41,250 dm³
mass = 53,212.5 g or 53.2 kg
Therefore, the mass of air contained in the room is approximately 53.2 kg.
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Explanation:
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Calculate no of gram atoms in 7.5g of gold
Answer:
less, decreases
Explanation:
When the pressure of an atmosphere occurs because of the force exerted so at the time of the higher altitudes, the air mass i.e. above the earth should be less as the air is attracted towards surface of an earth because of the gravity and air contains the mass that shows near the surface area so automatically the air density reduced due to which the mass also decreased
The best example of natural plasma is the ionosphere of the atmosphere including solar corona and lightning including auroras cloud.
the heated or hot matter that is so hot that the electrons are thrown away from the atoms and forms the ionized gas. Comprises over 99% of the visible universe.
Lightning strikes create plasma by doing a stricking of electricity. Mostly the Sun, and some stars, are in a plasma state. Certain regions of Earth's atmosphere contain some plasma created primarily by ultraviolet radiation from the Sun.
One reason plasma is not so common is because this needs high temperatures required to keep gas in the plasma state. At average temperatures on Earth, there just isn't enough energy for atoms to remain ionized.
However, at thousands to millions of degrees Kelvin, these energies are available, and plasmas dominate
Therefore, aurora clouds are natural plasma.
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Answer:
aurorus
Explanation:
Answer:
Speed of wave = 1500 m/s
Explanation:
Given data:
Frequency of wave = 10 Hz
Wavelength of wave = 150 m
Speed of wave = ?
Solution:
Formula:
Speed of wave = Frequency × Wavelength
Now we will put the values in formula.
Speed of wave = 10 Hz × 150 m
Speed of wave = 1500 m/s
Hz = s⁻¹
A) CH3CHO
B)CO2
C)CH3Cl
D)C2H6
E)NONE
There are two types of molecule in chemistry, one is polar molecule and other is non polar molecule. Therefore, among all the given option none is polar molecule. The correct option is option D.
A polar molecule is a type of chemical compound where there is an uneven distribution of electrons among the covalently bound atoms. The term "polarity" refers to how unlike two molecules' electrical poles are from one another. If they are quite dissimilar, the species is said to be a highly polar molecule.
Dipole moment tells about the extent of polarity in a molecule. It is measured in units of Debye. It can be calculated by multiplying charge and the separation between these two charges. Among all the given option none is polar molecule.
Therefore, among all the given option none is polar molecule. The correct option is option D.
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the answer is none
Explanation:
Water
Water is the most polar molecule because a bond between oxygen and hydrogen has the most difference out of the atoms listed. Although the oxygen has two hydrogens bonded, this does not decrease the electronegativity of oxygen, but oxygen unfairly shares sets of electrons from both hydrogens, making it more polar still