# ICSE class 9 Chemistry, Study Of GAS LAWS-Boyle’s law

DAY 2 ** STUDY OF GAS LAW**

** Measurable properties of gas**

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Pressure | Volume |

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** Boyel’s Law**

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Volume | Temperature |

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** ****Charles’ law**

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Pressure | Temperature |

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** Gay lussac’s law**

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Volume | No of Moles (n) |

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** Avogadro law**

** **** ****As per our Board syllabus we discuss only Boyel’s Law & ****Charles’ law**

** ****Boyels Law: **At constant temperature the volume of a given mass of gas is inversely proportional to its pressure.

Mathematically, Boyle’s law may be expressed as

V α 1/P ( At constant temperature and mass)

V = K/P or PV = K ( constant)

Let V_{1} be the volume of the gas at a pressure P_{1}, at constant temperature, if the pressure be increased to P_{2} then the volume will decrease to V_{2}, According to the law

P_{1}V_{1} = P_{2} V_{2} = Constant

**The product of volume and pressure of a given mass of gas is constant at a constant temperature**

**Writer Identity:** Mr S.Halder is a well-known Chemistry faculty of Aims . He hold Bachelor of Civil engineering & Master of Civil Engineering from Jadavpur University, He also did MBA (F) and A Chartered Engineer from Institute of Engineers (I). To contact the author please call Aims: +917003557150,+918697234172,+919748932154 Or Email : haldarsourav@gmail.com or log in: http://aimscognitive.com/.

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