Gay-lussac's law - Science Fourth Grade

P1 / T1 = P2 / T2

Where:

P1 = initial pressure of the gas
T1 = initial temperature of the gas (in Kelvin)
P2 = final pressure of the gas
T2 = final temperature of the gas (in Kelvin)

To apply Gay-Lussac's Law, it's important to remember to always convert temperatures to Kelvin before using them in the formula. This can be done by adding 273.15 to the temperature in degrees Celsius.It's also essential to keep the volume of the gas constant when using Gay-Lussac's Law. This means that the gas is held in a rigid container or the container's size is adjusted to maintain a constant volume.A real-world example of Gay-Lussac's Law is the behavior of a sealed container of gas when heated. As the temperature increases, the pressure inside the container also increases, demonstrating the direct relationship between pressure and temperature at constant volume.In summary, Gay-Lussac's Law provides a quantitative relationship between the pressure and temperature of a gas at constant volume, and it can be expressed using the formula P1 / T1 = P2 / T2.Now, let's review some practice questions to reinforce the understanding of Gay-Lussac's Law:1. If a gas has an initial pressure of 2.0 atm at a temperature of 300 K, what will be its pressure at 350 K, assuming the volume remains constant? Using Gay-Lussac's Law: P1 / T1 = P2 / T2

2.0 atm / 300 K = P2 / 350 K

Solving for P2:

P2 = (2.0 atm * 350 K) / 300 K

P2 = 2.33 atm

Therefore, the pressure of the gas at 350 K will be 2.33 atm.2. A gas at a pressure of 3.0 atm and a temperature of 400 K is cooled until its pressure is 2.0 atm. What is the final temperature of the gas, assuming the volume remains constant? Using Gay-Lussac's Law: P1 / T1 = P2 / T2

3.0 atm / 400 K = 2.0 atm / T2

Solving for T2:

T2 = (2.0 atm * 400 K) / 3.0 atm

T2 = 266.67 K

◂Science Worksheets and Study Guides Fourth Grade. Organ systems

Vocabulary/Answer key

Organ systems

Vocabulary/Answer key

Organ systems

Vocabulary/Answer key

Organ systems

Vocabulary/Answer key

Organ systems

Vocabulary/Answer key

Organ systems

The resources above cover the following skills:

LIFE SCIENCE (NGSS)

From Molecules to Organisms: Structures and Processes

Students who demonstrate understanding can:

Construct an argument that plants and animals have internal and external structures that function to support survival, growth, behavior, and reproduction.