# Science Journal Mod 8 Essay

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Module 8 Science Journal Caleb Foster Lesson 1 Practice 1 – Interactive Gas Laws Practice Boyle’s Law Practice: 1. His law gives the relationship between pressure and volume if temperature and amount are held constant. This means gas molecules have farther to go and they will impact the container walls less often per unit time. This means the gas pressure will be less because there are less molecule impacts per unit time. 2. Explain the steps used to solve Example #6: Use a ratio and proportion to estimate the pressure required for water to boil at 88 °C: 100 °C is to 101.3 kPa as 88 °C is to x x = 89.144 kPa Then solve the problem using Boyle's Law: P1V1 = P2V2 (101.3) (2.0) = (88.144) (x) x = 2.27 L The balloon will not burst. 3. Go to Boyle’s Law Worksheet and practice a few problems. (1.08 atm) (5.00 L) =(x) (10.0 L) Charles’ Law Practice: 1. This law gives the relationship between volume and temperature if pressure and amount are held constant. 2. If the volume increases, the temperature increases. 3. Explain the steps used to solve Example #5: Convert Celsius to Kelvin 7.00 °C = 280.0 K 88.0 °C = 361.0 K Set up Charles' law equation: [(4/3) (3.14159) (1.18)3] / 280 = [(4/3) (3.14159) (x3)] / 361 (1.18)3 / 280 = x3 / 361 x = 1.28 cm 4. Go to Charles’ Law Worksheet and practice a few problems. Write the problems you practiced below. At 225.0 °C a gas has a volume of 400.0 mL. What is the volume of this gas at 127.0 °C? Gay-Lussac ‘s Law: 1. Gives the relationship between pressure and temperature when volume and amount are held constant. If the temperature of a container is increased, the pressure increases. 2. If the temperature of a