Asked by RoseBud
assume equal masses of the following substances, all of them at 20.0 degrees C and exposed to the same source of heat simultaneously. Which substance will reach a temp of 35.0 degress faster?
aluminium sp 0.900
lead sp 0.128
titanium sp 0.523
tin sp 0.222
aluminium sp 0.900
lead sp 0.128
titanium sp 0.523
tin sp 0.222
Answers
Answered by
RoseBud
and which one will take the longest time to heat up to 35.5 degrees C?
Answered by
DrBob222
The long way is to make up a value for q and m and calculate delta T for each metal as in
q = m*c*delta T then choose the one that has the highest delta T value. The more esoteric way is to reason it out.
q = mcdelta T and solve for delta T.
dT = q/m*c
The problem says q is the same and m is the same so we have dT = k/c. That tells us that the lowest heat capacity will have the largest effect on dT. And the largest heat capacity will have the smallest effect on delta T. I like the esoteric way better.
q = m*c*delta T then choose the one that has the highest delta T value. The more esoteric way is to reason it out.
q = mcdelta T and solve for delta T.
dT = q/m*c
The problem says q is the same and m is the same so we have dT = k/c. That tells us that the lowest heat capacity will have the largest effect on dT. And the largest heat capacity will have the smallest effect on delta T. I like the esoteric way better.
Answered by
cortney
lead