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Thermodynamics — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryThermodynamics1 Mark
Question
In the equation, $\text{N}_2(\text{g})+3\text{H}_2(\text{g})\rightleftharpoons2\text{NH}_3(\text{g})$ would be the sign of work done?
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Answer

The sign of work done will be positive, i.e. work will be done on the system due to decrease in volume.

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