Question

Which of the following is true concerning kinetic-molecular theory and heat transfer between relatively hotter Object A and relatively colder Object B?

A. Molecules of Object A collide with those of Object B, and the molecules in Object B move faster.

B. Molecules of Object A collide with those of Object B, and the molecules in Object B move at the same speed.

C. Molecules of Object B collide with those of Object A, and the molecules in Object A move faster.

D. Molecules of Object B collide with those of Object A, and the molecules in Object B move slower.

Answer 1

Always remember: Heat transfers from hotter objects to colder objects. Not the other way around. Can you rule out some choices with that information?

Answer 2

I believe B and D are wrong. @iPwnBunnies

Answer 3

Ok, good. There is one more you can rule out. Object A gets colder since it's giving some of its heat/energy to Object B. So, Object B gets hotter at the same time.
You can probably figure out the answer now.

Answer 4

Also remember, the hotter an object is, the faster the molecules in the object are moving around.

Answer 5

So, the answer would be A?

Answer 6

U know object A is hotter than the object B

Answer 7

So the molecules of object A r moving faster than the molecules of object B

Answer 8

Molecules of object A will try to move faster the molecules of object B after contacting each other

Answer 9

Ya A