PTVn Problems and Experiments

      Over this past week, we solved PTVn problems and reviewed for the exam on Monday. These main ideas connect with each other because PTVn problems was on the exam. 

PTVn Problems We received two worksheets relating to PTVn. We had to find the missing pressure, temperature, volume, or number of particles by using a table. The table had us fill in the initial, final, and effect of the PTVn. Occasionally, we were given temperature in Celsius. To convert Celsius to Kelvin, we added 273 to Celsius. The standard temperature is 273 K and the standard pressure is 1 atm, 760 mmHg, or 4.5 psi. After we filled out the table and found the missing PTVn, we created particles diagrams based off of our table.

Example of a PTVn problem

Exam Review Fourth hour started a whiteboard with everything we learned in Unit 2. We, however, thought they lacked a few key ideas and added on to what they had. The first key idea was the popcorn particles. This experiment taught us how gas particles moved and spread. The second key idea was the food dye experiment. This experiment taught us how liquid particles moved in hot and cold water. The third key idea was the PTVn tables, graphs, and labs. The PTVn labs and graphs taught us how pressure, temperature, volume, and number of particles related with each other. The PTVn tables taught us how to find missing variables. The final key idea was the "blowing up student" experiment. This experiment taught us how more gas particles causes expansion.

Whiteboard of the key ideas

      We came to know and understand the ideas this week by completing worksheets and doing whiteboard activities. I do not have any other questions relating to what we did last week. My participation this week was good because I contributed to the class discussion. I would rate my understanding of all the ideas this week a 10 because I am positive I know and understand everything we went over. I don't think I need to work on anything. My ideas have changed because I now know more than I did in the beginning of the week.