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:

  1. 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


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