Question

In the graph shown, U is the internal energy of gas and $\rho$ the density. Corresponding to given graph match the following two columns

Answer 1

Since, Internal energy is increasing therefore, temperature is increasing.
density is increasing therefore, volume is decreasing.
Now V decreasing , T increasing
from ideal gas equation PV=nRT
P is increasing
since P is increasing ratio T/V is increasing
therefore,
A-2,B->3,C->2,D->2