Physical change is where u change physically or on the "outside" hope this helps, have a great day!
oops pls forgive me I accidentally did the wrong question.
Land will warm faster/quicker
Because the intention is to boil the solution, the purpose of the solvent is to dissolve so it has a higher boiling point so ensure it stays in liquid form and doesn't evaporate into a gas
also, a pure solvent is made of 1 substance so it has 1 boiling point and the solution must evaporate/boil first