MCQ
The expansion of unit mass of a perfect gas at constant pressure is shown in the diagram. Here
- A$a =$ volume, $b = °C$ temperature
- B$a =$ volume, $b = K$ temperature
- ✓$a = °C$ temperature, $b =$ volume
- D$a = K$ temperature, $b =$ volume
✓
Answer
Correct option: C.
$a = °C$ temperature, $b =$ volume
c
Given :- Pressure of perfect gas is constant i.e, $\frac{V}{T}$ is Constant
Given :- Pressure of perfect gas is constant i.e, $\frac{V}{T}$ is Constant
To Find :- Value of $a$ and $b$ in graph
Solution :- Since we know that Volume cannot be negative any more
$\therefore$ Here, $(b)$ is Volume
($\because$ a also contains negative value)
Since we know that Kelvin Temperature cannot be negative
$\therefore$ a is temperature $\left({ }^{\circ} C \right)$
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