Decarboxylation

the frequencies present in microwaves interact with carbon, oxygen and hydrogen only, they do not heat up things through friction, but radiation, as the microwave is absorbed by an element, electrons move up in energy levels, they are not stable there and come back down to their rest energy, emitting another photon in the process, typically in the infrared range. this exchange of radiation propagates across the item in the microwave. this takes time, which is why modern microwaves are intermittent emitters not constant like the old ones. they heat certain atoms up to insanely high temps and wait for the radiation to heat up everything else. this will degrade everything about your plant, while not removing very many OH groups from the THC molecules. THC breaks down completely at high temps. microwaves target hydrogen and carbon, it will heat up these elements present in the molecule so high it will completely destroy the molecule.

*... conductive transfer will ensue ... -- missed a word there.

heat and time. it is an endothermic reaction, so it requires energy for it to occur... provide enough energy and it will occur. you're also going to be causing unknown other reactions or degradation with excessive energy and microwaves. don't use a microwave unless you are superdespeate to dry out a nug to smoke.... not to decarb but just to smoke it. you only need to decarb something that is going to be eaten. smoking decarbs it as you smoke. it's actually a little vape chamber, really... the smoke doesn't get you high.. the vaporaized thc does that also comes with the smoke that you cannot see. whether the microwave directly heats it up or causes something else to radiate heat in the material is irrelevant. the heat is definitely there, otherwise our food wouldn't warm up. laws of thermodynamics... can't manifest energy from nothingness and the food doesn't magically get hot. the same energy that warms food will warm the pot. water, sugar, lipids/proteins will be excited by the microwaves, and these things exist in pot too. conductive will ensue.

You need heat, something microwaves do not achieve. Bouncing molecules and causing heat through friction is not heat warmth. Unless you are planning on eating your cannabis, there is no real need for this process (decarboxylation).

you can't decaborxylate properly using microwave use a oven 122°c 27 min

i personally wouldnt microwave heats up too fast and too much if you dont have a solid way to monitor the temps of the plant matter in real time i’d just use a standart electric oven