The atomic masses of He and Ne are 4 and 20 amu, respectively. The value of the De-Broglie wavelength of He gas at C is times that of Ne at C. The value of is

Question

The atomic masses of He and Ne are 4 and 20 amu, respectively. The value of the De-Broglie wavelength of He gas at  C is  times that of Ne at  C. The value of  is

Canvas Classes · Accepted Answer

Step 1: De Broglie wavelength for a gas molecule

For a gas at temperature , the thermal De Broglie wavelength is:

So:

Step 2: Set up ratio

Step 3: Convert temperatures to Kelvin

Step 4: Substitute values

Final Answer:

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