A graph is plotted of In(k) against 1/T. (k = rate constant, T = temperature in K)
The gradient has the numerical value of -55000.
What is the activation energy, in kJmol-1?
A +1.5 x 10^-7

B +2.22 x 10^-6

C +6.62

D+457

Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.