Answer:
The temperature must be changed to 4 times of the initial temperature so as to keep the pressure and the volume the same.
Explanation:
Pressure in the container is P and volume is V.
Temperature of the helium gas molecules =
Molecules helium gas = x
Moles of helium has =
PV = nRT (Ideal gas equation)
...[1]
After removal of helium gas only a fourth of the gas molecules remains and pressure in the container and volume should remain same.
Molecules of helium left after removal =
Moles of helium has left after removal =
...[2]
The temperature must be changed to 4 times of the initial temperature so as to keep the pressure and the volume the same.
PH is defined as the negative log of Hydrogen ion concentration. Mathematically we can write this as:
We are given the concentration of
. Using the value in formula, we get:
Therefore, the pH of the solution will be 3.745
Answer
Weathering and erosion are two processes of which sedimentary rocks are broken down and carry away existing rocks.
Explanation: