From the temperatures shown on the weather map and the knowledge that air
masses are usually pushed eastward by the
prevailing westerlies, what do you predict will
happen to the temperature in Kansas City the
day after the map was made? Explain

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen

Answerseafloor spreading;