Physics
Heat
Easy

Question

The temperature of an ideal gas is increased from 120K to 480K. If at 120K, the root mean square speed of the gas molecules is ‘v’, then at 480K it will be

  1. 4v
  2. 2v
  3. v over 2
  4. v over 4

The correct answer is: 2v


    straight v subscript r m s end subscript equals square root of fraction numerator 3 R T over denominator M end fraction end root not stretchy rightwards double arrow straight v subscript r m s end subscript proportional to square root of T

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