Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • A gas absorbs of heat and expands against the external pressure of <img alt="2" src="https://entrancecorner.oncodecogs.

A gas absorbs 140J of heat and expands against the external pressure of 2 atm from a
volume of 0.5L to 1L. The change in internal energy (in Joule) is

Note = (1 L\: atm = 101.3 J)

(Response should be like 45.8)

Option: 1

241.3


Option: 2

38.7


Option: 3

-38.7


Option: 4

0


Answers (1)

best_answer

 The work done in the irreversible process is

\mathrm{W = -P(V_2-V_1)}

\mathrm{V_1 = 0.5L}

\mathrm{V_2 = 1L}

Putting all the values we get,

W = -2(1-0.5) = -1 L.atm

       = -1^{*}101.3J = -101.3J         Note = (1 L\: atm = 101.3 J)

Also,  \Delta E=q+w

\Delta E=+140J-101.3J

\Delta E=+38.7J

 

Posted by

Sanket Gandhi

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

'Munna Bhai' again: CBI books two medical students for fraud in NEET-UG 2023
anam-khan

'NEET is about money': Tamil Nadu CM calls exam ‘morale scandal’ after CBI reveals Rs 90 lakh bribery attempt
anam-khan

NEET UG counselling 2025 schedule soon; know seat matrix, fee details

Latest Question