Alexa lets you choose her temperature and distance units. I don't think she offers Kelvin or parsecs* though.
And yes, she should have said sucrose will melt/decompose (depending on the water content, moisture is how you get inversion, that's really the difference between making caramel and golden syrup).
*yes, yes, I know, but Han Solo is always going to be more right than you, so give it up.