your feet are cold when you go to bed and you want something to warm up. would you prefer to have a bottle filled with hot water or one filled with equal mass of aluminium block at the same temperature as the water?

Question

anonymous · Answer

aluminum conducts heat very very quickly
it wouldnt heat your feet for very long

anonymous · Answer

if we are saying in term of heat capacity? how to explain it??

shane_b · Answer

http://openstudy.com/study#/updates/4df75ec70b8b370c28bd530a

anonymous · Answer

Q=m c dt

mc dt=mc dt
so equal mass
c dt= c dt

dt is the same
so you're just looking at which one has the higher heat coefficient

anonymous · Answer

or what ever the c stands for
$$Q= m c \Delta t$$

anonymous · Answer

c= specific heat 
c_water=4.186 
c_aluminum=0.900

anonymous · Answer

ok....i got it...thanx ya @completeidiot ....you're totally clever..^^