Answer:
0.558 atm
Explanation:
We must first consider that both gases behaves like ideal gases, so we can use the following formula: PV=nRT
Then, we should consider that, whithin a mixture of gases, the total pressure is the sum of the partial pressure of each gas:
P₀ = P₁ + P₂ + ....
P₀= total pressure
P₁=P₂= is the partial pressure of each gass
If we can consider that each gas is an ideal gas, then:
P₀= (nRT/V)₁ + (nRT/V)₂ +..
Considering the molecular mass of O₂:
M O₂= 32 g/mol
And also:
R= ideal gas constant= 0.082 Lt*atm/K*mol
T= 65°C=338 K
4.98 g O₂ = 0.156 moles O₂
V= 7.75 Lt
Then:
P°O₂=partial pressure of oxygen gas= (0.156x0.082x338)/7.75
P°O₂= 0.558 atm
Halite is transparent, but it can be died many different colors calcite is a white or colorless mineral consisting of calcium carbonate. It is a major constituent of sedimentary rocks such as limestone, marble, and chalk, can occur in crystalline form gypsum is a soft white or gray mineral consisting of hydrated calcium sulfate.
Answer:
Impulse = Average force x time of contact
Explanation:
Impulsive force is a force which is very large but applied on a body for a very small duration of time.
Impulse is given by the change in momentum of the body.
Impulse = Average force x small time interval
When padding is there, the time interval of contact is large and thus, the force exerted by the body is small.
So, when a person falls on the tile floor, there is no compression and thus, the time of contact is very small and thus the impulsive force is very large, due to which the body may damage.
So, when a person falls on the carpeted floor, there is a compression and thus, the time of contact is comparatively large and thus the impulsive force is small, due to which the body may safe.
Answer: B. Its randomness would increase
Explanation:
According to the <u>second law of thermodynamics</u>:
<em>"The amount of entropy in the universe tends to increase over time"</em>
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That is, in any cyclic process, entropy will increase, or remain the same.
So, in this context, entropy is a thermodynamic quantity defined as a criterion to predict the evolution or transformation of thermodynamic systems. In addition, it is used to measure the degree of organization of a system.
In other words: Entropy is the measure of the disorder (or randomness) of a system and is a function of state.
The answers would be:
Terrae
Deep areas of cooled lava
Here is more about your question:
<u>Terrae </u>is also known as the highlands of the moon's surface. The highlands are lighter in color than the other areas of the moon. They are mostly made up of feldspar. It is lighter in color because it reflects most of the light. These features formed as the lunar ocean cooled down.
<u>Maria </u>on the other hand, are the darker features of the moon. The singular form is Mare. These are areas of cooled lava that seeped out of the moon's interior as meteors hit it. They are mostly made up of basalt. These areas are dark, solid and flat.
