If $Q$ is the heat liberated from the system and W is the work done on the system then first law of…

If $Q$ is the heat liberated from the system and W is the work done on the system then first law of thermodynamics can be written as
  1. $\mathrm{Q}=\Delta \mathrm{U}-\mathrm{W}$
  2. $\mathrm{Q}=-\mathrm{W}$
  3. $\mathrm{Q}=\Delta \mathrm{U}+\mathrm{W}$
  4. $\mathrm{Q}=\mathrm{W}-\Delta \mathrm{U}$

Solution

$\Delta \mathrm{u}=\mathrm{Q}+\mathrm{W}$

Asked in: MHT CET 2022 (10 Aug Shift 2)

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