1. On a potential energy diagram for the following processes, which of the following has an increase in entropy?
Answer
ice melts
water freezes
steam condenses
water cools down in a refrigerator

2. Describe what happens to the particles of a liquid, in terms of movement and kinetic energy, as it is heated to its boiling point, including whether this is a physical or chemical change.

Question

1. On a potential energy diagram for the following processes, which of the following has an increase in entropy?
Answer
		ice melts
		water freezes
		steam condenses
		water cools down in a refrigerator

2. Describe what happens to the particles of a liquid, in terms of movement and kinetic energy, as it is heated to its boiling point, including whether this is a physical or chemical change.

anonymous · Answer

1. ice melts
2. temperature is a measure of kinetic energy so by increasing liquid temperature you increase its kinetic energy so they move and oscilate much faster until temperature of transition in vapor where they have enough energy do remove themselves from the mass of liquid 
transitions is pure physical