To Do… Chapter 13 Lab write up due next Wednesday. OWL Chapter 13 (part 1): Friday, 2/2 Chapter 13 (part 2): Tuesday, 2/6 Exam 1: Thursday, February 8

Exam 1 Thursday, February 8, 7:00 pm–8:30 pm; Rooms on the website Conflict: February 8; 5:00 pm – 6:30 pm in 1022 Lincoln Hall; sign up in 1026 CA Practice exam will be posted online. See me right away if you have a conflict with the exam and conflict times.

P and V (KMT)

Applying the KMT State two ways to accomplish this change and explain.

Gas Law Question What happens to a 4.50-L balloon at 25C and 1.00 atm if you increase the temperature of the gas inside the balloon to 95C? Use the KMT to explain why.

Gas Law Problem You increase the temperature of the gas inside a 4.50-L balloon at 25C and 1.00 atm to 95C. Solve for the new condition.

V vs. T(°C) (constant P, n)

V vs. T(K) (constant P, n)

P vs. V (constant n, T)

PV/nT for Different Gases (all at 1 atm and 273K) O2: 0.082040 Latm/molK N2: 0.082059 Latm/molK CO2: 0.081538 Latm/molK NH3: 0.080875 Latm/molK Ar: 0.082040 Latm/molK

Gas Law Problem You increase the temperature of the gas inside a 4.50-L balloon at 25C and 1.00 atm to 95C. Solve for the new condition. “Hot He balloon”

Egg in a Bottle Using liquid nitrogen to cool the bottle. What factors are changing? What factors are staying constant?

Egg in a Bottle Placing a burning cotton ball in the bottle What factors are changing? What factors are staying constant?

Gas Law Question What happens to a 4.50-L sample of gas in a steel tank at 25.0C and 1.00 atm if you increase the temperature of the gas inside the steel tank to 95C? Use the KMT to explain why.

Gas Law Problem You increase the temperature of the gas inside a 4.50-L steel tank at 25C and 1.00 atm to 95C. Solve for the new condition.