Question

Composition of my online learning experience

Answer 1

Explanation:

Answer:-

Given:-

Initial volume of the gas (V₁) = 2.60 L

Final Volume of the gas (V₂) = 1.75 L

Final Temperature (T₂) = 23.00° C = 23 + 273° K = 296° K

[ ∵ °K = °C + 273 ]

We know that,

Charle's law of gases states that at constant pressure, the volume of a gas is directly proportional to its temperature.

That is,

⟹ V ∝ T

⟹ V/T = k (constant)

So,

⟹ V₁/T₁ = V₂/T₂

Let the Initial temperature be T₁.

Hence,

⟹ (2.60)/T₁ = (1.75)/(296)

⟹ (2.60)(296) = T₁ * (1.75)

⟹ (296)(2.60) / 1.75 = T₁

⟹ 439.77° K = T₁

⟹ T₁ = 439.77 - 273°

⟹ T₁ = 166.77° C

∴ The Initial temperature of the gas was 166.77° C.

Answer 2

Answer:

Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Without photosynthesis, the carbon cycle could not occur, oxygen-requiring life would not survive and plants would die. ... The importance of photosynthesis in our life is the oxygen it produces.