In a process 605 J heat is absorbed by the system and 380 J work is done by the system on surrounding. What…

In a process 605 J heat is absorbed by the system and 380 J work is done by the system on surrounding. What is the value of $\Delta \mathrm{U}$ ?
  1. -225 J
  2. -985 J
  3. +225 J
  4. +985 J

Solution

$\begin{aligned} \Delta U & =q+w \\ & =605+(-380) \\ & =225 \mathrm{~J}\end{aligned}$

Asked in: MHT CET 2024 (02 May Shift 1)

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