Which cup had more heat energy transferred to it if the water in both cups was initially at room temperature (25 C), then cup A was heated to 45 C and cup B was heated to 90 C?
Cup A has 40g of water
Cup B has 20g of water
1. Not enough information is given.
2. Cup B had more heat energy transferred.
3. Both cups had the same heat energy
transferred.
4. Cup A had more heat energy transferred

Question

Which cup had more heat energy transferred to it if the water in both cups was initially at room temperature (25 C), then cup A was heated to 45 C and cup B was heated to 90 C?
Cup A has 40g of water
Cup B has 20g of water
1. Not enough information is given.
2. Cup B had more heat energy transferred.
3. Both cups had the same heat energy
transferred.
4. Cup A had more heat energy transferred

joannablackwelder · Answer

Specific heat * mass * change in temp = energy change
where spcific heat for water is 4.180 J/(g * deg C)

joannablackwelder · Answer

Find the energy change for each cup separately, then compare the energy change.

anonymous · Answer

Thank you so much!

joannablackwelder · Answer

No worries :)