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The volume of an ideal gas ( =1.5) is changed adiabatically from 5 litres to 4 litres. The ratio of initial pressure to final pressure is:

Options

  1. A16 25
  2. B4 5
  3. C8 5 5
  4. D2 5

Correct answer

C. 8 5 5

Step-by-step solution

For Adiabatic process aligned & P_i V_i=P_f V_f^ & P_i(5)^ 1.5 =P_f(4)^ 1.5 & P_i P_f = ( 4 5 )^ 3 2 = 4 5 ( 4 5 )^ 1 2 8 5 5 aligned

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