Column-I and Column-II contains four entries each. Entries of Column-I are to be matched with some entries of Column-II.
One or more than one entries of Column-I may have the matching with the same entries of Column-II and select the correct answer using the code given below the Columns

Options

A. a-p, b-s, c-r, d-q
B. a-p, b-s, c=s, d-q
C. a-s,b-p, c-r, d-q
D. a-p, b-r, c-r, d-q

Answer

A

Explanation

(A) At constant volume, W=0
`q lt 0` (Cooling)
`DeltaU lt 0` (Temperature is decreasing)
(B) `DeltaU=-0` (isothermal)
`w lt 0` (expansion)
`q gt 0 (DeltaU = q+w)`
( c) q=0 (Adiabactic)
w=0 (Vaccum)
`DeltaU =0`
(D) `w lt 0` (expansion)
`q gt 0` (endothermic)
`DeltaH = DeltaU gt 0`