Answer:
![\large \boxed{\text{4.5 atm}}](https://tex.z-dn.net/?f=%5Clarge%20%5Cboxed%7B%5Ctext%7B4.5%20atm%7D%7D)
Explanation:
The volume and amount of gas are constant, so we can use Gay-Lussac’s Law:
At constant volume, the pressure exerted by a gas is directly proportional to its temperature.
![\dfrac{p_{1}}{T_{1}} = \dfrac{p_{2}}{T_{2}}](https://tex.z-dn.net/?f=%5Cdfrac%7Bp_%7B1%7D%7D%7BT_%7B1%7D%7D%20%3D%20%5Cdfrac%7Bp_%7B2%7D%7D%7BT_%7B2%7D%7D)
Data:
p₁ =5.7 atm; T₁ = 100.0 °C
p₂ = ?; T₂ = 20.0 °C
Calculations:
1. Convert the temperatures to kelvins
T₁ = (100.0 + 273.15) K = 373.15
T₂ = (20.0 + 273.15) K = 293.15
2. Calculate the new pressure
![\begin{array}{rcl}\dfrac{5.7}{373.15} & = & \dfrac{p_{2}}{293.15}\\\\0.0153 & = & \dfrac{p_{2}}{293.15}\\\\0.0153\times 293.15 &=&p_{2}\\p_{2} & = & \textbf{4.5 atm}\end{array}\\\text{The new pressure will be $\large \boxed{\textbf{4.5 atm}}$}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Brcl%7D%5Cdfrac%7B5.7%7D%7B373.15%7D%20%26%20%3D%20%26%20%5Cdfrac%7Bp_%7B2%7D%7D%7B293.15%7D%5C%5C%5C%5C0.0153%20%26%20%3D%20%26%20%5Cdfrac%7Bp_%7B2%7D%7D%7B293.15%7D%5C%5C%5C%5C0.0153%5Ctimes%20293.15%20%26%3D%26p_%7B2%7D%5C%5Cp_%7B2%7D%20%26%20%3D%20%26%20%5Ctextbf%7B4.5%20atm%7D%5Cend%7Barray%7D%5C%5C%5Ctext%7BThe%20new%20pressure%20will%20be%20%24%5Clarge%20%5Cboxed%7B%5Ctextbf%7B4.5%20atm%7D%7D%24%7D)
Answer:
Moment=Force x Pivot
Explanation:
A moment is the turning effect of a force. Moments act about a point in a clockwise or anticlockwise direction.
Law of moments:
When an object is balanced (in equilibrium) the sum of the clockwise moments is equal to the sum of the anticlockwise moments.
How to calculate moments:
Moment=Force x Pivot
Answer:
Temperature.
Explanation:
Temperature is a measure of the average kinetic energy of a system.
Answer:
The MOLARITY of a solution tells how many moles of solute are present per liter
Explanation:
Molarity is a sort of concentration.
It is written as M (mol/L)