1kg of water at 100∘C is converted into steam at 100∘C by boiling at atmospheric pressure. The volume of water changes from 1.00×10−3m3 as a liquid to 1.671m3 as steam. The change in internal energy of the system during the process will be (Given latent heat of vaporisation =2257kJ/kg, Atmospheric pressure =1×105Pa)
Held on 11 Apr 2023 · Verified 6 Jul 2026.
−2426kJ
+2090kJ
−2090kJ
+2476kJ
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