iran-konkur 2020 Q198

iran-konkur · Other · konkur-riazi_1399_specialized_old-curriculum Not Maths
198. The $(V-T)$ diagram for $0.4$ moles of an ideal gas (complete) is shown in the figure below. The $(P-V)$ diagram corresponding to these two processes is which of the following? $$\left(R = 8\,\frac{\text{J}}{\text{mol.K}}\right)$$
[Figure: V(L) vs T(K) graph showing points C, A, B with V-axis values at 8 and 4, and T-axis values at 250 and 500]
  • [(1)] [Figure: P(Pa) vs V(L) graph, option 1 — points A at $4\times10^5$, B at $4\times10^5$, C at $10^5$, with V values at 2, 4, 8]
  • [(2)] [Figure: P(Pa) vs V(L) graph, option 2 — points B at $4\times10^5$, A at $4\times10^5$, C at $2\times10^5$, with V values at 2, 4, 8]
  • [(3)] [Figure: P(Pa) vs V(L) graph, option 3 — points B at $4\times10^5$, A at $4\times10^5$, C at $10^5$, with V values at 2, 4, 8]
  • [(4)] [Figure: P(Pa) vs V(L) graph, option 4 — points B at $4\times10^5$, A at $4\times10^5$, C at $10^5$, with V values at 2, 4, 8]

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\textbf{198.} The $(V-T)$ diagram for $0.4$ moles of an ideal gas (complete) is shown in the figure below. The $(P-V)$ diagram corresponding to these two processes is which of the following?
$$\left(R = 8\,\frac{\text{J}}{\text{mol.K}}\right)$$

\textit{[Figure: V(L) vs T(K) graph showing points C, A, B with V-axis values at 8 and 4, and T-axis values at 250 and 500]}

\medskip
\begin{itemize}
    \item[(1)] \textit{[Figure: P(Pa) vs V(L) graph, option 1 — points A at $4\times10^5$, B at $4\times10^5$, C at $10^5$, with V values at 2, 4, 8]}
    \item[(2)] \textit{[Figure: P(Pa) vs V(L) graph, option 2 — points B at $4\times10^5$, A at $4\times10^5$, C at $2\times10^5$, with V values at 2, 4, 8]}
    \item[(3)] \textit{[Figure: P(Pa) vs V(L) graph, option 3 — points B at $4\times10^5$, A at $4\times10^5$, C at $10^5$, with V values at 2, 4, 8]}
    \item[(4)] \textit{[Figure: P(Pa) vs V(L) graph, option 4 — points B at $4\times10^5$, A at $4\times10^5$, C at $10^5$, with V values at 2, 4, 8]}
\end{itemize}



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\textbf{Physics} \hfill \textbf{122-D} \hfill \textbf{Page 17}