4. Two hypothetic substances "X" and "P" have identical mass, and are at the same initial startingtemperature. When they are both placed on the same heat plate for 5 minutes, the final temperatureof substance X is 22.5 °C higher than the temperature of substance Y. (a) Discuss the basis for theobserved difference in the final temperatures between the two substances, and (b) Provide anexample to illustrate and support your answer. Your explanation must be thorough and based onsound scientific principles.