Q35 / 160 · AP EAMCET 2020 (18 Sep Shift 2) · Chemistry

Which of the following relations is true based on the partial pressure and mole fraction?

  • A
    \(p_t=\chi_1 \times T\)
  • Correct answer
    B
    \(p_t=\chi_i \times p_{\text {total }}\)
  • C
    \(\frac{p_i}{\chi_I}=V\)
  • D
    \(p_i \chi_i=p_{\text {total }}\)

Solution

Partial pressure \(=\) mole fraction \(\times\) total pressure So, the \(i\) th, component of a gas mixture, which obeys Dalton's law of partial pressure, \(p_i=\chi_i \times p_{\text {total }}\)

Hence, the correct answer is option: 'B'.

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