About This Tool:
Thermal expansion calculator is a online tool to calculate the linear expansion.
What is Thermal Expansion?
Thermal expansion is the tendency of matter to change in volume in response to a change in temperature, through heat transfer. Temperature is defined as the average molecular kinetic energy of a substance.
Formula:
L=α *L1(T2−T1)
Where,
L = Linear Expansion
L1 = Initial Length
α = Coefficient of Linear Expansion of the Material
T1 = Initial Temperature
T2 = Final Temperature
Thermal Expansion Calculator
Example:
A lead pipe is 80 m long at temperature 20oC. If the hot water flows through it the temperature of pipe raises to 42oC. Calculate the length of hot pipe if the linear expansion coefficient is 32 x 10-6K-1.
Step 1 :
Given:
Initial Length L1 = 80 m,
Initial temperature T1 = 200C,
Final temperature T2 = 420C,
Linear expansion coefficient = 32 x 10-6 K-1
Initial temperature T1 = 200C,
Final temperature T2 = 420C,
Linear expansion coefficient = 32 x 10-6 K-1
Step 2 :
The Thermal expansion is given by
L =
= 32 x 10-6K-1 80 m (80 - 20)0 C
= 56320 x 10-6 m
= 0.05632 m.
L =
= 32 x 10-6K-1 80 m (80 - 20)0 C
= 56320 x 10-6 m
= 0.05632 m.
Answer :
The thermal expansion L = 0.05632 m.
