Question

Thermodynamic processes are indicated in the following diagram.

Match the following

Column-1		Column-2
P.	Process I	a.	Adiabatic
Q.	Process II	b.	Isobaric
R.	Process III	c.	Isochoric
S.	Process IV	d.	Isothermal

• A. P→a, Q→c, R→d, S→b
• B. P→c, Q→a, R→d, S→b
• C. P→c, Q →d, R→b, S→a
• D. P→d, Q→b, R→a, S→c

Answer 1

The Correct Option is B

To solve this problem, we need to match each thermodynamic process with its correct type. The given diagram is a Pressure-Volume (P-V) graph commonly used to represent thermodynamic processes. Each process can be characterized as follows:

1. Process I: This process is vertical on the P-V diagram, indicating constant volume. Thus, it is an Isochoric process. (P → c)
2. Process II: This process is a curve that decreases without any exchange of heat, suggesting an Adiabatic process. (Q → a)
3. Process III: This process is parallel to the isotherms, indicating a constant temperature. Thus, it is an Isothermal process. (R → d)
4. Process IV: This process is horizontal indicating constant pressure, indicating an Isobaric process. (S → b)

Based on these observations, the correct matching for the processes is:

• P → c (Isochoric)
• Q → a (Adiabatic)
• R → d (Isothermal)
• S → b (Isobaric)

Thus, the correct answer is: P→c, Q→a, R→d, S→b