A new bridge is built with steel expansion joints. The total length of the bridge is 1200 m (there are about 8 expansion joints across the span). One day, the temperature starts at -6°C in the morning and reaches its highest temperature of 9°C in the afternoon. What is the total change in length of the bridge? αsteel = 0.000012 Round your answer to three decimal places and include meters as your units.
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
A new bridge is built with steel expansion joints. The total length of the bridge is 1200 m (there are about 8 expansion joints across the span). One day, the temperature starts at -6°C in the morning and reaches its highest temperature of 9°C in the afternoon. What is the total change in length of the bridge?
αsteel = 0.000012
Round your answer to three decimal places and include meters as your units.
Given :
Lo = 1200 m
To = -6°C
T = 9°C
αsteel = 0.000012
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