Question
16 kg oxygen gas expands at STP isobarically to occupy double of its original volume. The work done during the process is 244 kcal. HOW????????
Joshi sir comment
W = PdV = nRdT = (16*1000/32)*(8.31/4.18)*273
now solve
Read 3 Solution.
USE W= PdV= nRT WHERE T =273 , R=2 AND n=16/32 u will get approximate answer
SARIKA 12 year ago
is this solution helpfull: 99 103
sorry the correct answer is 266 kcal.
but on solving according u , the answer is 273 .
can we get correct answer on considering volume
AVANTIKA PURI 12 year ago
is this solution helpfull: 27 63
in this chapter it happens that the correct ans is something other than we have calculated so if the optn are not too close then use approximation , thats I use here also
SARIKA 12 year ago
is this solution helpfull: 30 45