- #1
tucky
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specific heat?
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
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