Ce presiune au 40L gaz la temperatura de 100⁰C, dacă la presiunea de 6 atm și temperatura de 50⁰C volumul ocupat este de 20L.

3,46 atm

Explanation:

Tenemos;

P1 =?

T1 = 100 + 273 = 373 K

V1 = 40 litros

P2 = 6 atmósferas

T2 = 50 + 273 = 323 K

V2 = 20 litros

Desde;

P1V1 / T1 = P2V2 / T2

P1V1T2 = P2V2T1

P1 = P2V2T1 / V1T2

P1 = 6 * 20 * 373/40 * 323

P1 = 44760/12920

P1 = 3,46 atm

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.