MCQ
Which of the following statements is true
  • A
    $\Delta E$ is always greater than $\Delta H$
  • B
    $\Delta E$ is always less than $\Delta H$
  • $\Delta E$ may be lesser or greater or equal to $\Delta H$
  • D
    $\Delta E$ is always proportional to$\Delta H$

Answer

Correct option: C.
$\Delta E$ may be lesser or greater or equal to $\Delta H$
(c) $\Delta E$ may be greater or lesser or equal to $\Delta H$.

$\because \Delta H = \Delta E + P\Delta V = \Delta E + \Delta nRT.$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free