(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the change in entropy when 2.00 kg of water at 100 degrees C is boiled away to steam at 100 degrees C. Give your answer in kJ/K

2. Relevant equations

deltaS=Q/T

Q=m*Lvaporization

3. The attempt at a solution

Q=m*Lvaporization

Q=2 kg * 22.6*10^5 J/kg

Q = 4.52x10^6 J

I'm not not sure how to find T though since it's at 100 degrees and going to 100 degrees...

Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Change in Entropy

**Physics Forums | Science Articles, Homework Help, Discussion**