Answer: possibly diffusion
Explanation:
all particles are in motion unless at a certain degree so they'd spread throughout the room diluting as they continue to spread out.
Answer 1 and 2 are true for alkaline solutions.
Acids have a pH below 7. (this is the answer)
Both acids and bases are electrolytes as they have free moving ions.
Feel free to comment if you want further explanation.
B. caulculating the distance between objects in the solar system
Answer:
V₂ = 70.80 L
Explanation:
Given data:
Initial volume of He = 45 L
Initial temperature = 250 °C
Final temperature = 550 °C
Final volume = ?
Solution:
Initial temperature = 250 °C (250+273.15 K= 523.15 K)
Final temperature = 550 °C (550 + 273.15 k= 823.15 K)
According to Charles Law.,
Mathematical expression:
V₁/T₁ = V₂/T₂
V₁ = Initial volume
T₁ = Initial temperature
V₂ = Final volume
T₂ = Final temperature
Now we will put the values in formula.
V₁/T₁ = V₂/T₂
V₂ = V₁T₂/T₁
V₂ = 45 L × 823.15 K / 523.15 K
V₂ = 37041.75 L.K / 523.15 K
V₂ = 70.80 L
Answer:
![P_2=404 kPa](https://tex.z-dn.net/?f=P_2%3D404%20kPa)
Explanation:
Hello,
In this case, the Boyle's is mathematically defined via:
![P_1V_1=P_2V_2](https://tex.z-dn.net/?f=P_1V_1%3DP_2V_2)
Which stands for an inversely proportional relationship between volume and pressure, it means the higher the volume the lower the pressure and vice versa. In such a way, since the volume is decreased to one quarter, we can write:
![V_2=\frac{1}{4} V_1](https://tex.z-dn.net/?f=V_2%3D%5Cfrac%7B1%7D%7B4%7D%20V_1)
We can compute the new pressure:
![P_2=\frac{P_1V_1}{V_2} =\frac{P_1V_1}{\frac{1}{4} V_1} =\frac{101kPa*V_1}{\frac{1}{4} V_1} \\\\P_2=4*101kPa\\\\\\P_2=404 kPa](https://tex.z-dn.net/?f=P_2%3D%5Cfrac%7BP_1V_1%7D%7BV_2%7D%20%3D%5Cfrac%7BP_1V_1%7D%7B%5Cfrac%7B1%7D%7B4%7D%20V_1%7D%20%3D%5Cfrac%7B101kPa%2AV_1%7D%7B%5Cfrac%7B1%7D%7B4%7D%20V_1%7D%20%5C%5C%5C%5CP_2%3D4%2A101kPa%5C%5C%5C%5C%5C%5CP_2%3D404%20kPa)
Which means the pressure is increased by a factor of four.
Regards.