(adsbygoogle = window.adsbygoogle || []).push({}); The next few questions refer to the Golden Great Bridge, built on planet Tehar in a galaxy far, far away. The bridge-building technology on Tehar is not very well developed: The bridge is just a long slab of pure gold with the opposite ends resting on the shores of the river.

In the spring, when the air temperature is 100 degrees Celsius, the length of the bridge is 160.0 klops (the klop is the unit of length on Tehar). Answer the questions below knowing that the value of alpha for gold is 1.4*10^-5.

Temperature in Winter: -150 degrees celcius

Temperature in Summer: 700 degrees celcius

By what percentage does the volume of the bridge increase between the winter and the summer?

I don't really know how to go about doing this question because it doesn't give the initial volume of the bridge. I tried to write 2 equations, one for the change in volume between winter and spring and another for the change in volume between spring and summer. I then cancelled out the volume in spring in both equations and rearranged the combined equation to get volume in summer/volume in winter and got an answer of 1.04 which i * by 100 to get 104%, which was wrong. What is the proper way I'm meant to approach this question because that is the only way I can see to do it.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Thermodynamics - Change in volume

**Physics Forums | Science Articles, Homework Help, Discussion**