A molecule is bigger than an atom
Answer:
Final pressure = 2.3225 atm
Amontons’s law states that
At constant volume and number of molecules, the pressure of a given mass of gas is directly proportional to its temperature
Explanation:
Temperature causes increased excitement of gas molecules increasing the number of collisions with the walls of the container which is sensed as increase in pressure
Amontons’s law: P/T = Constant at constant V and n
That is P1/T1 = P2/T2
Where temperature is given in Kelvin
Hence T1 of 10°C = 273.15 + 10 = 283.15K
Also temperature T2 of 40°C = 313.15 K
Hence
P2 = (P1/T1)×T2 = (2.1/283.15)×313.15 = 2.3225 atm
pH=5.108
<h3>Further explanation</h3>
pH shows the degree of acidity of a solution. The value between 0-14
The greater the value of H + ion concentration, the more acidic the solution is
Given
Concentration of H₃O = 7.8 x 10⁻⁶ M
Required
pH of a solution
Solution
pH= - log [H₃O⁺]
pH=-log[7.8 x 10⁻⁶]
pH=6-log 7.8
pH=5.108