Q. Which of the following statements is incorrect?
Answer: Change in entropy is directly proportional to the amount of heat taken up
Notes: Heat added to a system at a lower temperature causes higher entropy increase than heat added to the same system at a higher temperature. This gives more kinetic energy to distribute among the particles in the system, increasing the size of the system's phase space and hence its entropy. So change in entropy is inversely proportional to the amount of heat taken up.