Answer:
This process, which is the opposite of vaporization, is called condensation. As a gas condenses to a liquid, it releases the thermal energy it absorbed to become a gas. During this process, the temperature of the substance does not change. The decrease in energy changes the arrangement of particles.
A catalyst "provides an alternate reaction pathway with a lower activation energy". (2) is the correct answer.
Activation energy is the energy needed to conduct a chemical reaction. When a catalyst is put into the system, it makes the system require less activation energy, making the reaction go faster.
Hope this is helpful~
Hawking was the first to set out a theory of cosmology explained by a union of the general theory of relativity and quantum mechanics.
