Understanding Phase Change: Effects of Heat on Kinetic Energy

AI Thread Summary
During a phase change, added heat primarily affects the kinetic energy of molecules, causing them to move faster. While some participants argue that potential energy also plays a role, the consensus leans towards kinetic energy as the main factor. The discussion emphasizes that only one answer is correct, with kinetic energy being the preferred choice. The conversation reflects differing opinions on the significance of potential energy in this context. Ultimately, the focus remains on the relationship between heat and kinetic energy during phase changes.
mopar969
Messages
200
Reaction score
0
When a substance undergoes a phase change, the added heat changes (a) the temperature, (b) the kinetic energy, (c) the potential energy, (d) the mass of the substance.
I believe the answer is kinetic energy because the molecules move faster.
 
Physics news on Phys.org
only 1 answer is correct?
coz i guess both b,c
 
Only one answer is correct so I think the best answer is kinetic energy which is option B. What do you think, am I right?
 
i guess b is correct ... but c should also be an answer
 
Thanks.
 
you're welcome :smile:
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
View full post »

Similar threads

Can heat flow into a body without increasing the mean kinetic energy?
Replies
1
Views
1K
Do you need to account for the water heating up to the boiling point?
Replies
23
Views
2K
AP physics 2: Phase change in thin film interference
Replies
1
Views
746
Thermo physics (Phase diagram Phase changes)
Replies
1
Views
1K
Energy conservation law question with capacitor
Replies
8
Views
2K
Work done during a collision -- Change in Kinetic Energy & change in Momentum
Replies
1
Views
2K
Finding equilibrium temperature when there are phase changes
Replies
2
Views
1K
Incorrect Calculation of Time for Reactor Energy Phase Change
Replies
1
Views
2K
Question about Phase Change & Latent Heat
Replies
13
Views
3K
Energy transformations in an IC engine cylinder
Replies
30
Views
2K

Hot Threads

Recent Insights

Back
Top