The racemisation of pinene is first order reaction. In the gas phase the specific reaction rate was found to be 2.2. x 10–5 min–1 at 457.6 K and 3.07 x 10–3 min–1 at 510.1K. The activation energy is
(a) ln 2.2 x 10 –5 x 457.6
(b) 3.048 x 10 –3
(c) (510.1 x 457.6/52.5) R ln (307/2.2)
(d) R (510.1 – 457.6) ln (3.07 x 10-3/2.2 x 10-5)