25 points : d phases of matter activity now it is your turn to show what you know about phases of matter and thermal energy transfer! your task is to create a presentation to explain the transformation of a substance as it changes phases. you may choose to write a story or create a comic strip. for your story or comic, you will create a main character and detail the adventure as your character is exposed to thermal energy, causing it to undergo phase changes from a solid, to a liquid, to a gas. you may create your own comic strip using drawings, presentation software, or this comic strip template. your presentation must include the following: title and introduction of your character, including what substance the character is made of source of thermal energy your character encountered (conduction, convection, and/or radiation) a detailed description and/or diagram of the particle transformation from solid to liquid phase a detailed description and/or diagram of the particle transformation from liquid to the gas phase you may get creative on this activity. if you are unsure if your idea or software for a presentation will work, contact your instructor for assistance. be sure to review the grading rubric before you begin.

I can't art but I envision a comic of a swimming pool with chlorine water in it. The bottom of the pool is black. The chlorine is happy and excited to protect the people going to swim in it. Then the sun comes out, warms the black tile, the water is heated and the chlorine is boiled into gas form. Unable to control its movement through the atmosphere, the large amount of chlorine from the in-ground pool infiltrates the home of its lovely owners, and they die from chlorine gas inhalation, as well as half the neighborhood.

The end.

answer: enthalpy

explanation:

for a exothermic reaction, the energy is released i.e. the energy of the products is lower than the energy of the reactants.

= enthaply

= energy of products

= energy of reactants

as , thus comes out to be negative. negative value of enthalpy shows that the reaction is exothermic.

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied