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AP EAMCET2005PhysicsKinetic Theory of Gases

The tyre of a motor car contains air at 15^ C . If the temperature increases to 35^ C , the approximate percentage increase in pressure is (ignore to expansion of tyre)

Options

  1. A7
  2. B9
  3. C11
  4. D13

Correct answer

A. 7

Step-by-step solution

aligned T₁=15^ C & =15+273=288 ~K T₂ & =35^ C =35+273=308 ~K aligned Volume remains constant. So, aligned & p₁ T₁ = p₂ T₂ & p₁ P₂ = T₁ T₂ p₁ P₂ = 288 308 & p₂ p₁ = 308 288 aligned aligned % increase in pressure & = p₂-p₁ p₁ 100 & = 308-288 288 100 & 7 % aligned

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