Which is a component of John Dalton’s atomic theory? The ratio of atoms in a compound is fixed. The atoms of different elements

Answer:

The equilibrium state is established at the fourth panel.

Explanation:

Chemical Equilibrium signifies that the overall characteristics of the system seem to stabilize and stop fluctuating.

However, in terms of chemical equilibrium, this should accurately be described as dynamic equilibrium, where the rates of the forward and backward reactions are balanced, even though the concentrations may still adjust.

Equilibrium occurs when the composition of spheres in the specific panel matches that in the adjacent panels, where the particular color and quantity of spheres become invariant.

Based on the question's illustration,

- The first panel displays ten large red spheres.

- The second panel shows 8 large red spheres and two small blue spheres.

- The third panel depicts six large red spheres and four small blue spheres.

- The fourth panel illustrates four large red spheres and six small blue spheres.

- The fifth panel features four large red spheres and six small blue spheres.

Clearly, the composition of the spheres remains constant from the fourth to the fifth panel. Hence, the first appearance of this stable arrangement is in the fourth panel.

Therefore, equilibrium is achieved for the first time at the fourth panel.

Hope this Helps!!!

We are provided with
4.35 g of phosphoric acid
5.25 g of KOH
3.15 g of K3PO4 produced

The reaction formula is
H3PO4 + 3KOH => K3PO4 + 3H2O

Initially, convert the given masses into moles.
Then, identify the limiting reactant. Afterward, calculate the maximum K3PO4 that can be generated from the limiting reactant.
Finally, compute the percent yield by dividing the actual yield by the theoretical yield.

Answer:

The final temperature of the entire water mixture, once all the ice has melted, stands at 12.9°C. It’s crucial to understand that in a closed system where no heat is lost, the total heat exchanged is 0.

This implies that the temperature decreased as the ice transferred heat to the water, leading to its cooling.

Explanation:

To begin:

Q1 = Q representing the heat gained from melting ice.

Q2 = Q denoting the heat lost by the water to melt the ice.

Q1 + Q2 = 0

Given that the ice starts at 0 °C, we must first determine the energy required to completely melt it. If the ice had been at a lower temperature, we would have raised it to 0 °C using the formula:

Q = mass × specific heat × (ΔT)

and then, to perform the state transition by utilizing the latent heat of fusion.

The heat of fusion for water at 0 °C is roughly 334 joules per gram.

Thus, Q = Hf × mass.

Q1 = 334 J/g × 8.32 g = 2778.88 J

For the water, we use:

Q = mass × specific heat × (ΔT)

Q2 = 55g × 4180 J/kg·K (Tfinal - T initial)

Converting 55 g to kg yields 0.055kg to maintain consistent units.

Q2 = 0.055kg × 4180 J/kg·K (Tfinal (unknown) - 25°)

Note that the temperature in degrees Kelvin (K) is the same for specific heat but differentiates as K vs. °C.

25°C = 298K

Q2 = 0.055kg × 4180 J/kg·K (Tfinal - 298K)

The conclusion:

Q1 + Q2 = 0

334 J/g × 8.32 g + 0.055kg × 4180 J/kg·K (Tfinal - 298K)

2778.88 J + 229.9 J/K (Tfinal - 298 K) = 0

2778.88 J + 229.9 J/K × Tfinal - 68510.2 J = 0

229.9 J/K × Tfinal = 68510.2 J - 2778.88 J

Tfinal = 65731.4 J / 229.9 K/J

Tfinal = 285.9 K

Tfinal = 285.9 K - 273K = 12.9 °C