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Hey guys….I need help with another problem.

Q: Below are two sets of data from an experiment to determine the specific heat of a metal sample. For which mass will t the uncertainty n the specific heat be greater? Explain your answer. The uncertainty in all temperature measurements is +/- 1 degree C. And for all masses are +/- .1g. The specific heat of water is 1.0 cal/g degree C with negligible uncertainty.

Metal Sample A:

Initial temperature A----25 C

Mass of metal A-------- 100g

Initial Temp of water----100 C

Mass of water-----200g

Thermal Equilibrium temp of metal B in water---75 C

Metal Sample B:

Initial temp B----25C

Mass of metal----100g

Initial temp of water----100C

Mass of water----200g

Thermal Equilibrium temp of metal B in water---90C

A: Q=m*C*(change temp)

Metal A Q=(.1 +/-.0001kg)C(348+/-1K-298+/-1k)

Metal A Q=5+/-.19716KgKC

Metal B Q=(.1 +/-.0001kg)C(363+/-1K-298+/-1k)

Metal B Q=6.5+/-.29705KgKC

Now, I am stuck…I don’t know how to finish this problem. Can anyone help me??? Actually, I don’t even know if I am on the right track.

Tucky

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# Homework Help: Specific heat?

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