A steel girder has a length of 8.0 m at 25°C. What will be its length at 0° if the coeffcient of linear expansion of steel is XXXXXXXXXX/K? Ethyl alcohol has a real coeffcient of volume expansion of...

A steel girder has a length of 8.0 m at 25°C. What will be its length at 0° if the coeffcient of linear expansion of steel is 0.000 015/K?

Ethyl alcohol has a real coeffcient of volume expansion of 0.0011/K, by how much will a volume of 2000 mm3 be reduced when the temperature falls from 20°C to 0°C?