AP EAMCET · Chemistry · States of Matter
Find the false statement for ideal gases.
- A Kinetic energy of \(1 \mathrm{~mol}\) of gas depends on mass of the gas molecule.
- B Kinetic energy increases with increase in temperature.
- C Kinetic energy of \(1 \mathrm{~g}\) of \(\mathrm{H}_2\) is higher than that \(8 \mathrm{~g}\) of \(\mathrm{O}_2\) at the some temperature.
- D At a given temperature, kinetic energy does not depend on the pressure of the gas.
Answer & Solution
Correct Answer
(D) At a given temperature, kinetic energy does not depend on the pressure of the gas.
Step-by-step Solution
Detailed explanation
K.E. \(=\frac{1}{2} \mathrm{mv}_{\mathrm{rms}}^2 ; \mathrm{v}_{\mathrm{rms}}=\sqrt{\frac{3 \mathrm{KT}}{\mathrm{m}}}\) At a given temperature \(T, v_{\text {rms }} \propto \frac{1}{\sqrt{\mathrm{m}}}\) \(\therefore\) K.E. of 1 mol. of gas is independent of the gas molecules.
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