The question is incomplete, here is the complete question:
Consider this reaction occurring at 298 K:
If a reaction mixture contains only at partial pressures of 1.0 atm each, the reaction will be spontaneous until some NO forms in the mixture.
What maximum partial pressure of NO builds up before the reaction ceases to be spontaneous. Given that:
<u>Answer:</u> The maximum partial pressure of NO will be
<u>Explanation:</u>
For the given chemical equation:
The expression of for above equation follows:
When the reaction ceases to be spontaneous, the (at equilibrium)
Relation between standard Gibbs free energy and equilibrium constant follows:
where,
= Standard Gibbs free energy = 107.8 kJ/mol = 107800 J/mol (Conversion factor: 1 kJ = 1000 J )
R = Gas constant =
T = temperature = 298 K
Putting values in above equation, we get:
Hence, the maximum partial pressure of NO will be
Answer:
Explanation:
Equilibrium reactions are reversible reactions.
The general expression for equlibrium reactions is:
Which means that A produces B and B produces A. Those are two reactions:
- Direct or forward reaction: A → B (the arrow points from left to the right)
- Reverse reaction: A ← B (the arrow points from right to left).
So, in the direct reaction A is the reactant and B is the product, and in the reverse reaction A is the product and B is the reactant.
When you start with only A, only A is reacting and since the rate of reaction is proportional to the concentration of the reactants the rate of the direct reaction is high. As the reaction proceeds B appears and the concentration of A decreases, so the rate of the direct reaction decreases and the rate of the reverse reaction increases. At some moment the rate of both direct and reverse reactions are equal and the dynamic chemical equilibrium is reached.
C.)quartz. Quartz is forms not sedementary
Answer: -
None of these are correct
Explanation: -
Solar prominiences are the trapped gases within the sun.
It extends outward into the sun's corona.
They consist of plasma cooler than that in corona.
They last from a day to even several months.
They are caused as a result of magnetic forces.
Solar prominences can extend over thousands of kilometers. Prominences vary considerably in size, shape, and motion.
They are of two main types, active and quiescent.
<span>Phosphorus trifluoride (formula PF3), is a colorless and odorless gas. is similar to carbon monoxide and this is very toxic according to my research. hope this helps.</span>