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UPCET / UPSEE Constants — practice questions

Explore 1 free Constants questions in UPCET / UPSEE Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Constants questions and exercises with answers

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The relation between universal gas constant $R$, Avogadro number $N_A$, and Boltzmann constant $k_B$ is:Read the answer and worked solution →

Worked practice questions

The relation between universal gas constant $R$, Avogadro number $N_A$, and Boltzmann constant $k_B$ is:

  1. $R = k_B/N_A$
  2. $R = N_A k_B$
  3. $R = N_A + k_B$
  4. $R = N_A^2 k_B$
Show answer and solution

Correct answer: B. $R = N_A k_B$

$R = N_A k_B$. $R$ is per mole; $k_B$ is per molecule. Dividing $R$ by $N_A$ gives the per-molecule constant.

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