Search any question & find its solution
Question:
Answered & Verified by Expert
A frictionless piston-cylinder based enclosure contains some amount of gas at a pressure of $400 \mathrm{kPa}$. Then heat is transferred fo the gas at constant pressure in a quasi-static process. The piston moves up slowly through a height of $10 \mathrm{cm} .$ If the piston has a cross-sectional area of $0.3 \mathrm{m}^{2},$ the work done by the gas in this process is
Options:
Solution:
1345 Upvotes
Verified Answer
The correct answer is:
$12 \mathrm{kJ}$
$W_{\text {constant pressure }}=p \times \Delta V$ $=400 \times 10^{3} \times 0.3 \times 10 \times 10^{-2}$
$=400 \times 10 \times 3$
$=12000=12 \mathrm{kJ}$
$=400 \times 10 \times 3$
$=12000=12 \mathrm{kJ}$
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.