All About Gold

February 3, 2010

What is the temperature at the junction when a bar of gold is in thermal contact with a bar of silver?

Filed under: Physics — Tags: , , — @ 4:50 am

A bar of gold is in thermal contact with a bar of silver of the same length and area. One end of the compound bar is maintained at 80.0 degrees C (gold end), and the opposite end is at 30.0 degrees C (silver end). When the energy transfer reaches a steady state, what is the temperature at the junction?
Answer is 51.2 degrees C, but how do I solve this problem?

Chantal
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September 5, 2009

How many joules of energy are required to raise the temperature of 100 g of gold from 20.0°C to 75°C?

Filed under: Physics — Tags: , , — @ 6:48 am

How many joules of energy are required to raise the temperature of 100 g of gold from 20.0°C to 75°C?

Beverley
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