Can One Ounce of Gold Really Be Pulled into a 50km Wire?

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Homework Help Overview

The discussion revolves around the feasibility of drawing one ounce of gold into a monofilament wire that could extend up to 50 kilometers in length. Participants are tasked with evaluating this claim and supporting their arguments with evidence.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants are attempting to calculate the volume of one ounce of gold and are questioning the dimensions of the wire. There are inquiries about the appropriate diameter for the monofilament wire and how to relate this to the total volume required for the specified length.

Discussion Status

The discussion is ongoing, with participants exploring different aspects of the problem. Some have raised questions about the calculations and assumptions being made, while others are attempting to clarify the parameters of the wire's dimensions.

Contextual Notes

There appears to be confusion regarding the units and calculations involved, particularly in relation to the volume of the wire and the dimensions being used. Participants are encouraged to provide clear definitions and reasoning for their assumptions.

kassib
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Homework Statement


one ounce of gold (taken to be 28.35g) can be pulled or drawn into a monofilament wire that can be up to 50km in length

true or false

support your argument with some evidence

Homework Equations


atomic mass of gold ,Au= 196.96
avagardo's number=6.02x1023 atoms/mole
approx. radius of a single gold atom r=10-10 m
volume of sphere=4XpieXr3/3


The Attempt at a Solution


one ounce of gold X atomic mass ?
 
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kassib said:

Homework Statement


one ounce of gold (taken to be 28.35g) can be pulled or drawn into a monofilament wire that can be up to 50km in length

true or false

support your argument with some evidence

Homework Equations


atomic mass of gold ,Au= 196.96
avagardo's number=6.02x1023 atoms/mole
approx. radius of a single gold atom r=10-10 m
volume of sphere=4XpieXr3/3


The Attempt at a Solution


one ounce of gold X atomic mass ?

Welcome to the PF!

What is the volume of 1oz of gold? What is a reasonable diameter for a thin monofilimanet wire? What would the volume be of such a wire at the length asked about in the question?
 
a reasonable diameter for the monofilament could be 0.25? work out the volume of this and times and times the answer by 50 ?
 
kassib said:
a reasonable diameter for the monofilament could be 0.25? work out the volume of this and times and times the answer by 50 ?

0.25 what, for goodness sake?!

And you don't multiply volume by distance to get volume again...
 

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