1 g of water, of volume 1cm3at 100°C, is converted into steam at same temperature under normal atmospheric pressure (1×105 Pa).The volume of steam formed equals 1671cm3. If the specific latent heat of vaporisation of water is 2256 J/g, the change in internal energy is,

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

2256 J

2423 J

2089 J

167 J

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

ΔQ=2256×1=2256 J ΔW=PVsteam -Vwater =1×105[1671-1]×10-6=1670×105×10-6=167 JBy first law of thermodynamics: As ΔQ=ΔU+ΔW2256=ΔU+167ΔU=2089 J

Watch 3-min video & get full concept clarity