Combined Gas Law

Today's lecture was over our fourth gas law, the combined gas law. The combined gas law uses all of the variables: temperature, volume, moles, and pressure. The formula can be seen in the picture below for the combined gas law.

The formula for the combined gas law:

Combined Gas Law

Avogadro's Law

The third gas law we have learned in this unit is Avogadro's law. Avogadro's law has volume and moles of a gas as directly proportional when the temperature an pressure are held constant. As the volume increases, the moles will proportionally increase in order to maintain the constant temperature and pressure.

The formula for Avogadro's Law:

Practice

Charle's Law

The second gas law we have learned in this unit is Charle's law. In Charle's law, moles and pressure are held constant while temperature and volume change. While temperature increases the volume will also increase, just like when the volume decreases so will the temperature, in order to maintain constant pressure and moles.

Formula for Charle's Law:


Practice Problems
Charle's Law

Boyle's Law

The first lesson of our gas law unit was over Boyle's law. Boyle's law is an inverse relationship between pressure and volume while temperature and moles are held constant. Since Boyle's law is an inverse relationship, as the pressure increases, the volume decreases and vice versa. The formula for Boyle's Law is represented by P1V1=P2V2.



Boyle's Law
Practice Problems

Review

Some links that I found resourceful in reviewing this units topics:

Enthalpy Video

Intermolecular vs. Intramolecular
Q=MCAT practice

Heating and Cooling Curves

Intermolecular Forces

Specific Heat Capacity of a Metal

Today we performed the specific heat capacity of a metal lab. In order to calculate the specific heat capacity with the data. we had to use -MCAT=MCAT. In this lab we were finding the specific heat of copper. Some links that were helpful included:
Specific Heat Capacity Practice
MCAT and Heat
Determining Specific Heat

Pop Pop Boat

After making the biodiesel in lab, we are making pop pop boats that will use the biodiesel for fuel. The biodiesel goes in with a candle wick that heats up the engine and creates CO2 that make the boat move in the water. Some helpful links for making a pop pop boat:
Video tutorial
http://www.sciencetoymaker.org/boat/asembCartonl.html