P1
Explanation:
The final pressure in the vessel is the same as that of the start of the reaction. We can use the simplification of the combined gas law to solve this problem.
The combined gas law is expressed mathematically as;
P1 is the original pressure
T1 is the initial pressure = 600k
P2 is the final pressure = P2
T2 is the final temperature = 600K
Unknown is the final pressure of the reaction
Input the parameters
This leaves us with P1 = P2
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Catalyst has found usage in non-scientific terms as an almost metaphorical word for something provokes or speeds up action or change. The word's applicability to many topics made it easy for it to find its way out of the scientific lexicon and into other domains, in this case political.
Its meaning is roughly the same, in that a catalyst in this context is something that facilitated or sped up the process of glasnost.
One distinct meaning that I notice is that "catalyst" in more casual or non-scientific speech is that it is often used as a creator of action all its own, an actor in itself, rather than a facilitating agent to a reaction, as its scientific definition states.
In an endothermic reaction products are <u>HIGHER </u>than reactants in potential energy and <u>LESS </u>stable.
Explanation:
Energy is input into the reaction in an endothermic reaction. This means the products are of a higher energy level than the reactants. Therefore the reaction increases Gibb's free energy and reduces entropy. Remember in thermodynamic stability involves an increase in entropy and a decrease in Gibbs free energy. Therefore the products are less stable than the reactants. This is why endothermic reactions do not occur spontaneously like exothermic reactions.
(125 mg Na) x (1 g/1000mg) x (1 mol of Na/22.99 g) = 5.43 E -3 mols of Na
5.43 E -3 mols x 6.022 E 23 = 3.27 E 21 Na atoms
