TS EAMCET · Chemistry · States of Matter
What is the temperature at which the kinetic energy of 0.3 moles of helium is equal to the kinetic energy of 0.4 moles of argon at \(400 \mathrm{~K}\) ?
- A \(400 \mathrm{~K}\)
- B \(873 \mathrm{~K}\)
- C \(533 \mathrm{~K}\)
- D \(300 \mathrm{~K}\)
Answer & Solution
Correct Answer
(C) \(533 \mathrm{~K}\)
Step-by-step Solution
Detailed explanation
Number of moles of helium \(=0.3\) Number of moles of argon \(=0.4\) We know that \(\mathrm{KE}=n R T\) \(\mathrm{KE}\) of helium \(=0.3 \times R \times T\) \(\mathrm{KE}\) of argon \(=0.4 \times R \times 400\) According to question \(\mathrm{KE}\) of helium \(=\mathrm{KE}\) of…
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