The total translational kinetic energy of 16 g of O2 (molar mass 32) at 300 K, taking R = 8.314 J K^-1 mol^-1, in joules (nearest integer) is

JEE Advanced levelNumerical answerDifficulty 3 of 3ig045

The total translational kinetic energy of $16 g$ of $O X_{2}$ (molar mass 32) at $300 K$ , taking $R = 8.314 J K^{- 1} mo l^{- 1}$ , in joules (nearest integer) is

Numerical answer type, answer in J, tolerance 1.

n = 16/32 = 0.5 mol

K E = \frac{3}{2} n RT = 1.5 \times 0.5 \times 8.314 \times 300 = 1870.65 \approx 1871 J