Calculate the change in enthalpy in a chemical reaction when work done is $-800 \mathrm{~J}$ and increase in…

Calculate the change in enthalpy in a chemical reaction when work done is $-800 \mathrm{~J}$ and increase in internal energy is $600 \mathrm{~J}$.
  1. -1400 J
  2. -240 J
  3. -200 J
  4. -680 J

Solution

$\begin{aligned} & \triangle H=\Delta U+P d V \\ & =600-800 \\ & =-200 \mathrm{~J}\end{aligned}$

Asked in: MHT CET 2022 (08 Aug Shift 2)

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