CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

At the top of a mountain a thermometer reads 7 and barometer reads 70 cm of Hg. At the bottom of the mountain they read 27 and  76 cm of Hg respectively. Compare the density of the air at the top with that at the bottom.


A
0.7867
loader
B
0.5894
loader
C
0.9868
loader
D
0.3658
loader

Solution

The correct option is A 0.9868
According to gas equation PV = nRT
PV=mMRT[as n=mM]or PρT=MR[as mV=ρ]
Now as M and R are same for top and bottom
(PρT)T=(PρT)Bi.e. ρTρB=PTPB×TBTTSo ρTρB=7076×300280=7576=0.9868

Physics

Suggest Corrections
thumbs-up
 
0


similar_icon
Similar questions
View More


similar_icon
People also searched for
View More



footer-image