Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Unit mass of a liquid with volume , is completely changed into a gas of volume  at a constant external pressure 

Unit mass of a liquid with volume V_1, is completely changed into a gas of volume  at a constant external pressure P and temperature T. If the latent heat of evaporation is , then the increase in the internal energy of the system is -

Option: 1

zero


Option: 2

P\left(V_2-V_1\right)


Option: 3

L-P\left(V_2-V_1\right)


Option: 4

\mathrm{L}


Answers (1)

best_answer

\begin{aligned} \Delta Q&=\Delta U+P \Delta V \\ \Rightarrow m L&=\Delta U+P\left(V_2-V_1\right) \\ \Rightarrow \Delta U&=L-P\left(V_2-V_1\right)\\ \quad \therefore m&=1 \end{aligned}

Posted by

Rishabh

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

'Years of hard work wasted': NEET aspirants, parents and teacher react to exam cancellation
anam-khan

CBI registers FIR in alleged NEET UG 2026 paper leak case after NTA cancels examination
anam-khan

Telangana doctors’ group, FAIMA condemn NEET UG 2026 paper leak, call it ‘complete systemic failure’

Latest Question