she's keeping her main windows laptop in her room....so needs something small and light just for lessons.
she's studying chemistry so no heavy graphic type use needed...mainly word and office type stuff....which can all be had in android apps...
advantages i can see...are...small light....good battery....fast boot up.....wont get bogged down in windows updates etc....all office type programs can be had in apps etc.
she wont need massive amounts of storage.....so could use a usb drive and cloud if needed.
was thinking a mid range one around the 200 -250 mark
there was a nice 2 in 1 acer with 32 gb down to 209 quid in the sales....now sold out everywhere at that price
HP elitebook 820 G* series are great, small, light, 12/5" and fast.
you can also look for a cheap HP elitebook 2570p or similar, 3rd gen i5. built like tanks, i took and used one in america on holiday, not as light granted, but robost and great to type on.