Answer:
I. Increasing pressure will allow more frequent successful collision between particles due to the particles being closer together.
II. Rate of reaction increases due to more products being made; as increased pressure favours the exothermic side of the equilibrium.
III. Increasing temperature provides particles lots of (Kinetic) energy, for more frequent successful collision due to the particles moving at a faster rate than before. However, favouring the endothermic side of the equilibrium due to lots of energy required to break and form new bonds.
IV. Rate of reaction increases due to increase temperature favouring both directions of the equilibrium - causing products to form faster.
Hope this helps!
Answer is C.) G<span>oes from extremely cold to extremely hot during a lunar day </span>
The reason is because the temperatures on the moon<span> are very hot in the daytime, about 100 degrees C. At night, the </span>lunar <span>surface gets very cold, as cold as minus 173 degrees C. This wide variation is because Earth's </span>moon has no atmosphere to hold in heat at night or prevent the surface from getting so hot during the day.
Answer:
Explanation:
We can use the Arrhenius equation to relate the activation energy and the rate constant, k, of a given reaction:
k=Ae−Ea/RT
In this equation, R is the ideal gas constant, which has a value 8.314 J/mol/K, T is temperature on the Kelvin scale, Ea is the activation energy in joules per mole, e is the constant 2.7183, and A is a constant called the frequency factor, which is related to the frequency of collisions and the orientation of the reacting molecules.
Both postulates of the collision theory of reaction rates are accommodated in the Arrhenius equation. The frequency factor A is related to the rate at which collisions having the correct orientation occur. The exponential term,
e−Ea/RT, is related to the fraction of collisions providing adequate energy to overcome the activation barrier of the reaction.
Answer:
solid
Explanation:
Matter in the solid state maintains a fixed volume and shape
Answer:
0.0250 g
Explanation:
176.12 g/mol* 0.000142 mol =0.0250 g
