Question 23M.2.HL.TZ2.9c

ALTERNATIVE 1

use of $T{V}^{\frac{2}{3}}$ = constant «so $300{\left(3V_{\mathrm{A}}\right)}^{\frac{2}{3}}=T_{\mathrm{C}}{\left(V_{\mathrm{A}}\right)}^{\frac{2}{3}}$» ✓

T_C = 624 «K» OR T_C = 351 «°C» ✓

ALTERNATIVE 2

use of $p{V}^{\frac{5}{3}}$ to get either p_c = $43{\left(3\right)}^{\frac{5}{3}}$ OR p_c = 268 «kPa» ✓

« T_C = 268 × 300/129 = so »

T_C = 624 «K» OR T_C = 351 «°C» ✓