Chemical and physical principles

Question 1

First law of thermodynamics

Answer 1

Energy cannot be created nor destroyed.

Question 2

Second law of thermodynamics

Answer 2

The degree of disorder in the universe tends to increase.

Question 3

Experiment that prove that living organisms come from other living organisms?

Answer 3

1. Francesco Redi’s hypothesis that maggots come from fly eggs. Experimented using three jars. One open, one covered with paper, the other sealed. Whenever there were flies present maggots appeared.

Question 4

Experiment that proves that microbes come from other microbes.

Answer 4

1. Louis Pasteur argued that microbes do not generate from nonliving organisms. He used a straight flask which allowed for the dust to enter and a swan neck flask so it could not. After sterilizing the broth microbes were found in the straight neck flask.