AdministratorJune 22, 2021 at 5:32 am1023 Replies201950 XPContributions: EnterMedSchool Donor Team Manager VolunteerReputation: Level 7
An aluminium block of mass 2.5 kg is supplied with 9000 J of thermal energy. This causes its temperature to rise by 4 K. Which expression gives the specific heat capacity of this aluminium, from this data?
[Assume that the block remains solid throughout, and that no additional energy is exchanged between the block and the surroundings.]
A. 9000 x 2.5 x 4 K kg^-1 K^-1
B. [(2.5 x 4)/9000] K kg^-1 K^-1
C. [(9000 x 2.5)/4] J kg^-1 K ^-1
D. [(9000)/(2.5 x 4)] J kg^-1 K ^-1
E. [(9000 x 4)/2.5] J kg^-1 K ^-1
[see below for original question format]
MemberJuly 30, 2021 at 1:01 am1012 Replies87596 XPContributions: VolunteerReputation: Level 6
For this question, you should know the concept of Specific Heat Capacity(c).
It is the amount of heat required to raise the temperature of 1 kilogram of a substance by 1 kelvin.
It is given by- Delta(Q)= mc Delta(T)
where, Q= change in heat energy
c= specific heat capacity
T= change in temperature
Put the given values in above formula to get value of c.
Please confirm you want to block this member.
You will no longer be able to:
- See blocked member's posts
- Mention this member in posts
- Invite this member to groups
- Message this member
- Add this member as a friend
Please note: This action will also remove this member from your friends and send a report to the site admin. Please allow a few minutes for this process to complete.