Which of the following statements is TRUE regarding calorimetry and heating curves?

W) Bomb calorimeters directly measure the change in enthalpy of a reaction

X) A heating curve plots pressure versus temperature and is divided into three regions

Y) Regions depicting a phase change are flat on a heating curve

Z) The steeper the slope of a heating curve, the higher the heat capacity of that phase
Y) REGIONS DEPACTING A PHASE CHANGE ARE FLAT ON A HEATING CURVE