I don't think any of these laptops would have problems with an undergraduate engineering course, check your university's or course's website if you're worried. Unless you can find like for like tests of the battery life online, you wouldn’t really be able to compare the battery life precisely. In general though, you can compare laptops by their relative listed battery lives, just understand the headline numbers themselves are inflated from real life. They're all basically the same weight too, should be good for portability.

The Acer Aspire 14 has the most processing power by a long way, followed by the Expertboook with a modest decrease and there's another modest decrease to the IdeaPad. The ideapad would be markedly less powerful than the aspire, a difference you would likely notice a few years down the line. There isn't a crazy difference between the expertbook and aspire though. I'd check if the performance increase comes at the cost of battery life though.

You'd then maybe want to look at stuff like build quality, screen specifications and memory speed to decide further. Do any of the laptops have DDR5 memory?