Thermodynamics and Thermochemistry - Result Question 53
####53. The succeeding operations that enable this transformation of states are
(a) heating, cooling, heating, cooling
(b) cooling, heating, cooling, heating
(c) heating, cooling, cooling, heating
(d) cooling, heating, heating, cooling
Match the Columns
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Answer:
Correct Answer: 53. (c) 54. A $\rightarrow$ r, t; B $\rightarrow p, q, s ; C \rightarrow p, q, s ; D \rightarrow p, q, s, t$
Solution:
- PLAN By Boyle’s law at constant temperature, $p \propto \frac{1}{V}$
By Charles’ law at constant pressure, $V \propto T$
Process taking place at
Constant temperature - isothermal
Constant pressure - isobaric
Constant volume - isochoric
Constant heat — adiabatic
| $K \longrightarrow L$ | At constant $p$, volume increases |
thus, heating |
|---|---|---|
| $L \longrightarrow M$ | At constant $V$, pressure decreases |
thus, cooling |
| $M \longrightarrow N$ | At constant $p$, volume decreases |
thus, cooling |
| $N \longrightarrow K$ | At constant $V$, pressure increases |
thus, heating |
