As temperature rises from 25°c to 60°c, the material heat and its kinetic energy as the material goes through vaporization to become a gas.

As temperature rises from 25°C to 60°C, the material absorb heat and its kinetic energy increases as the material goes through vaporization to become a gas.

Explanation:

Heat is said to be the amount of energy present in a substance . it might also be potential energy.

Kinetic energy talks about an energy in motion.

Temperature rise causes an increase in the heat energy as the material tends to absorb more heat and become more energize. Temperature rise also causes an increase in the kinetic energy of the molecules of a substances. As the temperature rise the molecules of the material gain more kinetic energy and the speed at which the molecule move increases to cause faster interaction. Since the material turned to gas their is bound to be higher kinetic energy causing the material to vaporize.

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

hi there!

your question asks at which segment does freezing occur.

since we're talking about water, the freezing point of water will be 32 degrees fahrenheit or below.

hope this ! ~