Answer:
Final Temperature is 310K
Explanation:
Given that:
Mass of O₂ gas = 2 kg
Pressure (P₁) = 100 kpa
Temperature (T₁) = 310K
We also have, ΔQ = ΔU + ΔW where ΔQ is the heat transferred into/out of the system, ΔW is the work done and ΔU is the change in internal energy of the system.
As soon as the wall is removed, the process called expansion process allows the evacuated chamber to be filled. Work done ΔW = PdV = 0, this is because P the external pressure against which the gas is expanding is zero, therefore the work done is zero.
ΔU which is highly dependent on the temperature is zero since there is no heat transferred in or out of the container due to it being insulated. This therefore means that the initial temperature is the same as the final temperature when the container if filled completely.
T₁ = Final temperature = 310 K
The final Temperature is therefore 310K
Answer:
b. greater because the column of blood between the arm and leg has hydro-static pressure
Explanation:
The use of the "depth" equation explains it very well.
I believe it is the 2nd one because the ground purifies it over a period of a little while.
Due to its polarity and hydrogen bonding water can absorb heat without a significant temperature change.. The high specific heat of water helps regulate the rate at which air changes temperature, which is why the temperature change between seasons is gradual instead of sudden, especially near the oceans.