Dinitrogen tetraoxide is a colorless gas at room temperature. It can dissociate into nitrogen dioxide, which...

Dinitrogen tetraoxide is a colorless gas at room temperature. It can dissociate into nitrogen dioxide, which is a reddish brown gas.

N₂O₄(g) <<<------->>>2 NO₂(g)

Three experiments were run starting with different initial amounts of N₂O₄(g) ([N₂O₄]₀ in the table). The systems were allowed to reach equilibrium and the concentrations for each gas were measured (in units of moles/Liter).

For each of the boxes below, calculate the ratios indicated by the column heading. This will show the mathematical relationship that exists between the concentrations of NO₂ and N₂O₄ at equilibrium.

Be sure to round to the correct number of significant figures.

Exp	[N₂O₄]₀	[NO₂]	[N₂O₄]	[NO₂] / [N₂O₄]	2 [NO₂] / [N₂O₄]	[NO₂]² / [N₂O₄]
1	3.7	2.92	2.2
2	2.8	2.49	1.6
3	2.6	2.33	1.4

Based on your calculations, indicate whether each statement is True (T) or False (F):
___TF1. Each experiment started with a different initial concentration of N₂O₄.
___TF2. The ratio ([NO₂] / [N₂O₄]) is equal to a constant value.
___TF3. The ratio (2 [NO₂] / [N₂O₄]) is equal to a constant value.
___TF4. The ratio ([NO₂]² / [N₂O₄]) is equal to a constant value.
___TF5. Each experiment reached a different set of equilibrium concentrations.

Solutions

Expert Solution

Exp	[N₂O₄]₀	[NO₂]	[N₂O₄]	[NO₂] / [N₂O₄]	2 [NO₂] / [N₂O₄]	[NO₂]² / [N₂O₄]
1	3.7	2.92	2.2	2.92/2.2= 1.33	2*2.92/2.2=2.65	(2.92^2)/2.2=3.88
2	2.8	2.49	1.6	2.49/1.6=156	2*2.49/1.6=3.11	(2.49^2)/1.6=3.88
3	2.6	2.33	1.4	2.33/1.4=1.66	2*233/1.43.33	2.33)^2/1.4=3.88

Based on your calculations, indicate whether each statement is True (T) or False (F):
___TF1. Each experiment started with a different initial concentration of N₂O₄.

This is true. initial concentration of N₂O₄ are 3.7, 2.8, 2.6

___TF2. The ratio ([NO₂] / [N₂O₄]) is equal to a constant value.

This is FALSE

The ratio value of [NO2]/ [N2O4] in all three experiment have different value

___TF3. The ratio (2 [NO₂] / [N₂O₄]) is equal to a constant value.

This is FALSE

The ratio value of [2 [NO₂] / [N₂O₄] in all three experiment have different value

___TF4. The ratio ([NO₂]² / [N₂O₄]) is equal to a constant value.

The ratio value of [NO2]²/ [N2O4] in all three experiment have same value 3.88 is a constant value.

___TF5. Each experiment reached a different set of equilibrium concentrations.

It is true

queen_honey_blossom answered 1 year ago

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