The rate constant for a reaction at 37∘C is 0.075s-1. If the frequency factor is 2.2 x 1012 s-1, calculate the activation energy barrier (Ea) for the reaction in kJ/mol.

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.

Helium decays to form lithium. which equation correctly describes this decay?

Apropane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas remains constant