Question

JEE MAINS CHEMISTRY QUESTION SEPTEMBER 2020

Answer 1

2/R is ans of this question plz make ans as brainlist

Answer 2

ANSWER.

option [ 3 ] is correct. = 2R

EXPLANATION.

$\sf \to \: arrhenius \: concept \: \implies \: k \: = ae {}^{ (\dfrac{ - ea}{rt} )} \\ \\ \sf \to \: as \: we \: know \: that \: \\ \\ \sf \to \: equation \: of \: slope \: \implies \: \dfrac{ y_{2} - y_{1} }{ x_{2} - x_{1}} \\ \\ \sf \to \: coordinate \: = (5 \: ,0) \: \: and \: \: \: (0 \: ,10)$

$\sf \to \: y \: = \dfrac{10 - 0}{0 - 5} = - 2 \\ \\ \sf \to \: as \: we \: know \: that \: \\ \\ \sf \to \: ln(k) = ln(a) - \dfrac{ea}{rt} \\ \\ \sf \to \: ln(k) = ln(a) - \frac{ea}{r \times 10 {}^{3} } \\ \\ \sf \to \: - \frac{ ea}{r \times 10 {}^{3} } = - 2 \\ \\ \sf \to \: ea \: = 2r \times 10 {}^{3} j \\ \\ \sf \to \: ea = 2r \: kj \: = answer$