Is it normal for rear brake pads to produce burning smell after replacement?

I just replace my rear brake pads myself today. The brand is Wagner QS and they're ceramic.They're the correct pads for my car. It's not a strong burning smell but it is noticeable. When I touch the rear rims they're warm. The front rims and brakes aren't like this since I didn't replace... show more I just replace my rear brake pads myself today. The brand is Wagner QS and they're ceramic.They're the correct pads for my car. It's not a strong burning smell but it is noticeable. When I touch the rear rims they're warm. The front rims and brakes aren't like this since I didn't replace them since they still have a lot of life left. Is this normal? How long will it last? Will it go away? Is it serious/bad? Should I get it checked out?
Update: I drove between 40-45 MPH and did not brake hard
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