MODULE 1 : CHEMISTRY, MATTER AND MEASUREMENTS
16 Topics | 13 Quizzes
MODULE 2 : ATOMS, PERIODIC TABLE AND ENERGY
12 Topics | 10 Quizzes
MODULE 3 : NUCLEAR CHEMISTRY
8 Topics | 8 Quizzes
MODULE 4: CHEMICAL BONDING
16 Topics | 12 Quizzes
MODULE 5: CHEMICAL REACTIONS AND STOICHIOMETRY
11 Topics | 12 Quizzes
MODULE 6: GASES
9 Topics | 9 Quizzes
MODULE 7: SOLUTIONS
8 Topics | 6 Quizzes
MODULE 8: REACTION RATES AND EQUILIBRIUM
7 Topics | 8 Quizzes
MODULE 9: ACIDS AND BASES
11 Topics | 12 Quizzes
Chapter 6: Unit 1. Atmosphere
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Atmosphere
On earth, we live under a blanket of air that presses down us and everything else surrounding us. According to weather report, the pressure of atmosphere varies day to day. Atmosphere contains several gases like nitrogen, oxygen, argon etc. Their relative percentages in air are given below.
As the height of the air column decreases in higher altitude, the atmospheric pressure decreases. Air pressure is highest at the sea level. Below sea level pressure increases due to water pressure and atmospheric pr.
As the height of the air column decreases in higher altitude, the atmospheric pressure decreases. Air pressure is highest at the sea level. Below sea level pressure increases due to water pressure and atmospheric pr.