At a certain temperature the gasses sulfur dioxide and oxygen react to form the gas sulfur trioxide. Kp for this reaction is 2 x 10 5. If 1 atm of SO2 and 1 atm of O2 are injected into an evacuated rigid vessel, will the partial pressure of O2 at equilibrium be closest to 0 atm, 0.5 atm, 1 atm or 1.5 atm? Justify your answer.

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

the answer is 0.8m.

by: nicholas