Which of the following processes occurs with a decreaseentropy of the system

The number at the end of an isotope’s name is the number.

Is a pencil falling to the floor anon contact force, a force, or a contact force

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?