What is the coefficient of volume expansion of brass?

The coefficient of volume expansion is a measure of how much a material expands in volume when its temperature increases. For brass, a common alloy made primarily of copper and zinc, the value is typically around 57 x 10⁻⁶/°C. This value reflects how brass behaves in response to temperature changes; as the temperature rises, the particles in brass vibrate more and require more space, leading to an increase in volume.

Understanding the coefficient of volume expansion is important in various applications where temperature changes occur, such as in engineering and construction. Materials with different coefficients may expand or contract at different rates, which can impact structural integrity and performance if not accounted for.

While the other options present different coefficients, they do not accurately reflect the typical measurement for brass. Therefore, 57 x 10⁻⁶/°C is the correct coefficient for brass that aligns with established data on its thermal properties.