Kinetic Molecular Theory<span> states that </span>gas<span> particles are in constant motion and exhibit perfectly elastic collisions. </span>Kinetic Molecular Theory<span> can be used to </span>explain<span>both Charles' and Boyle's Laws. The average </span>kinetic<span> energy of a collection of </span>gas<span>particles is directly proportional to absolute temperature only.</span>
Answer:
- 278.85 J
Explanation:
Given that:
Pressure = 1.1 atm
The initial volume V₁ = 0.0 L
The final volume V₂ = 2.5 L
The work that takes place in a reaction at constant pressure can be expressed by using the equation:
W = P(V₂ - V₁ )
Since the volume of the gas is expanded from 0 to 2.5 L when 1.1 atm pressure is applied. Then, the work can be given by the expression:
W = - P(V₂ - V₁ )
W = -1.1 atm ( 2.5 - 0.0) L
W = -1.1 atm (2.5 L)
W = -2.75 atm L
Recall that:
1 atm L = 101.4 J
Therefore;
-2.75 atm L = ( -2.75 × 101.4 )J
= -278.85 J
Thus, the work required at the chemical reaction when the pressure applied is 1.1 atm = - 278.85 J
You can find out what mineral it is when you bring it with you after you hike. You can bring it to a laboratory that specializes on mineral rocks for testing. They know what they should do to find out what it is. Hope this helps. Have a nice day.
helium, beryllium, magnesium, calcium, strontium, barium, radium. i believe any of these are proper answers.
Answer:
The answer to your question is 0.98 g of H₂
Explanation:
Data
mass of H₂ = ?
mass of Zn = 31.8 g
Balanced chemical reaction
Zn + H₂SO₄ ⇒ ZnSO₄ + H₂
Process
1.- Calculate the molar mass or atomic mass of Zinc and hydrogen
The Atomic mass of zinc = 65 g
The Molar mass of H₂ = 2 g
2.- Use proportions and cross multiplication to find the mass of H₂ formed.
65 g of Zn ----------------- 2 g of H₂
31.8 g of Zn -------------- x
x = (31.8 x 2) / 65
x = 63.6/65
-Result
x = 0.98 g of H₂
