Temperature change in a nail it's a tricky one.

In summary, pounding a nail into wood can make the nail warmer. Using the given values of a 5-g steel nail, a hammer exerting 600 N of force, and the specific heat capacity of steel, it can be determined that the nail will become approximately 16 oC hotter.
  • #1
Dmitri10
19
0
"Pounding an nail into wood makes the nail warmer. Consider a 5-g steel nail 6 cm long, and a hammer that exerts an average force of 600 N on it when driving the nail into a piece of wood. About how much hotter will the nail become? (The specific heat capacity of steel is 450 J/kgC.)"

Here's my work:
Given: m = 0.005 kg, d = 0.06 m, F = 600 N, c = 450 J/kgoC
Unknown: ΔT
Equation: W = Fd, Q = mcΔT
Substitution: W = 600 N * 0.06 W = 30 J
30 J = 0.005 kg * 450 J/kgoC * ΔT
Solution: ΔT = 16 oC

Is this correct?
 
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  • #2
Dmitri10 said:
"Pounding an nail into wood makes the nail warmer. Consider a 5-g steel nail 6 cm long, and a hammer that exerts an average force of 600 N on it when driving the nail into a piece of wood. About how much hotter will the nail become? (The specific heat capacity of steel is 450 J/kgC.)"

Here's my work:
Given: m = 0.005 kg, d = 0.06 m, F = 600 N, c = 450 J/kgoC
Unknown: ΔT
Equation: W = Fd, Q = mcΔT
Substitution: W = 600 N * 0.06 W = 30 J
30 J = 0.005 kg * 450 J/kgoC * ΔT
Solution: ΔT = 16 oC

Is this correct?
It does look correct, even with your typo of 30 J instead of 36 J, but you used 36 J anyway in your calc, looks good!:wink:
 
  • #3
Oh! Yes, 30 J was a typo; I actually used 36 J. Thank you for checking my work though!
 

1. What causes temperature change in a nail?

The temperature change in a nail is caused by the transfer of thermal energy, also known as heat, from an external source. This can be from direct contact with a hotter object, such as a flame, or from the surrounding environment.

2. How does the material of the nail affect its temperature change?

The material of the nail can affect its temperature change due to its specific heat capacity, which is the amount of heat required to raise the temperature of a substance by one degree. Different materials have different heat capacities, so they will absorb and release heat at different rates when exposed to the same temperature change.

3. Is there a limit to how much the temperature of a nail can change?

Yes, there is a limit to how much the temperature of a nail can change. This is known as the melting point, which is the temperature at which a solid material changes to a liquid state. Once the nail reaches its melting point, any further increase in temperature will not cause a significant change in its physical state.

4. How does the thickness of the nail affect its temperature change?

The thickness of the nail can affect its temperature change by influencing its surface area. Thicker nails have a larger surface area, which allows for more heat to be transferred from the surrounding environment. This results in a faster and more significant temperature change compared to thinner nails with a smaller surface area.

5. Can the temperature change in a nail be reversed?

Yes, the temperature change in a nail can be reversed. This can be done by removing the source of heat and allowing the nail to cool down to its original temperature. The rate at which the nail cools down will depend on factors such as its material, thickness, and surroundings.

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