I need help with Physics. This is do tomorrow! Anyone up for the challenge?
1. Would opening a refrigerator door on a warm day help to cool the kitchen? Explain.
2. In each of the following examples, determine if there is an increase, decrease or no change in the system's entropy
a. A hot fudge sundae is left uneaten too long, so that hte ice cream melts and the fudge solidifies.
b. A green plant combines water and carbon dioxide molecules in photosynthesis to make a larger, more complex molecule of sugar.
c. You drop your research paper on the way up the stairs and find that, when you have gathered all the pages, they are no longer in sequence.
d. All the perfume in an opened bottle evaporates and fills the room with scent.
e. A shortage of library personnel makes it increasingly difficult to find the books you want in their proper locations on the shelves.
3. A container of steam containing 0.65 kg at 185.0 degrees Celsius expands, doing work by moving a piston which exerts a force of 450 N over a distance of 2.11 m. What is the final temperature of the steam?
This has to do with Thermal Energy and Entropy Will someone please explain these answer to me?
1. Would opening a refrigerator door on a warm day help to cool the kitchen? Explain.
2. In each of the following examples, determine if there is an increase, decrease or no change in the system's entropy
a. A hot fudge sundae is left uneaten too long, so that hte ice cream melts and the fudge solidifies.
b. A green plant combines water and carbon dioxide molecules in photosynthesis to make a larger, more complex molecule of sugar.
c. You drop your research paper on the way up the stairs and find that, when you have gathered all the pages, they are no longer in sequence.
d. All the perfume in an opened bottle evaporates and fills the room with scent.
e. A shortage of library personnel makes it increasingly difficult to find the books you want in their proper locations on the shelves.
3. A container of steam containing 0.65 kg at 185.0 degrees Celsius expands, doing work by moving a piston which exerts a force of 450 N over a distance of 2.11 m. What is the final temperature of the steam?
This has to do with Thermal Energy and Entropy Will someone please explain these answer to me?