Chemistry: The Combined Gas Law

1. The pressure of a gas changes from 120 kPa to 50 kPa. The volume changes from 45
initial temperature is 81°C, what is the final temperature in °C?

2.) A sample of nitrogen goes from 21 m² to 14 m and its pressure increases from 100 kPa to 150 kPa. The
final temperature is 300 K What was the initial temperature in Kelvins?
sample of argon goes from 500 K to 350 K and its pressure changes from 280 kPa to 380 kPa. If th
tial volume is 18 dm3, what is the final volume?