Air is present all around and it pushes objects in all direction and, this pushing is known as air pressure.
When water is poured out of a bottle, the air present inside the bottle cools down. As colder air has low pressure in comparison to warmer air, thus, lower pressure is exerted by the air inside the bottle. Now, outside the bottle, air has a higher pressure than the air inside the bottle and this crushes the bottle.
Hence, the air present outside of the bottle pushes inward on the bottle and air present inside will be pushing outward on the bottle
Thus, option (A) and option (C) is the correct answer.
Air is present all around and it pushes objects in all direction and, this pushing is known as air pressure.
When water is poured out of a bottle, the air present inside the bottle cools down. As colder air has low pressure in comparison to warmer air, thus, lower pressure is exerted by the air inside the bottle. Now, outside the bottle, air has a higher pressure than the air inside the bottle and this crushes the bottle.
Hence, the air present outside of the bottle pushes inward on the bottle and air present inside will be pushing outward on the bottle
Thus, option (A) and option (C) is the correct answer.
Answer:
AStep-by-step explanation:
The input force is 50 N. But it will not create not any change. No mechanical advantage is observed.
glycoproteins
Explanation:
A positive reaction for Molisch's test is given by almost all carbohydrates (exceptions include tetroses & trioses). It can be noted that even some glycoproteins and nucleic acids give positive results for this test (since they tend to undergo hydrolysis when exposed to strong mineral acids and form monosaccharides).
Answer:
Taking into accoun the ideal gas law, The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.
An ideal gas is a theoretical gas that is considered to be composed of point particles that move randomly and do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.
The pressure, P, the temperature, T, and the volume, V, of an ideal gas, are related by a simple formula called the ideal gas law:
P×V = n×R×T
where P is the gas pressure, V is the volume that occupies, T is its temperature, R is the ideal gas constant, and n is the number of moles of the gas. The universal constant of ideal gases R has the same value for all gaseous substances.
Explanation:
In this case, you know:
P= 0.884 atm
V= ?
n= 0.857 moles (where 28 g/mole is the molar mass of N₂, that is, the amount of mass that the substance contains in one mole.)
R=0.082
T= 328 K
Replacing in the ideal gas law:
0.884 atm×V= 0.857 moles× 0.082 ×328 K
Solving:
V= 26.07 L
The volume of a container that contains 24.0 grams of N2 gas at 328K and 0.884 atm is 26.07 L.
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