Question

Select the correct graphs

a) The P-V graph at constant temperature is a rectangular hyperbola.

b) The P-V graph is a straight line parallel to the Y-axis.

c) P-V graph at constant temperature is a straight line passing through the origin

d) V-T graph at constant pressure is a straight line passing through the origin.

• A. a,b
• B. b,d
• C. c,d
• D. a,d

Answer 1

The correct option is D a,d

(a)P-V graph at constant temperature is a rectangular hyperbola since PV= constant
(b)PV-V graph we cannot find because nothing about pressure and temperature is specified
(c) is wrong because Option is correct.
(d)and at constant pressure V is proportional to T. so, the graph is a straight line.
Therefore (a) and (d) are correct statements hence option(D) is correct