A three meter piece of copper tubing weighing 100 g changes in temperature from
ID: 997148 • Letter: A
Question
A three meter piece of copper tubing weighing 100 g changes in temperature from 21.0°C to 45.0°C after having a fluid pass through the tube. How much heat did the tubing absorb from the liquid? The specific heat capacity of copper is 0.387 J/(g.K).
6. True or false; a state function only depends on the current conditions of a system and the path to reach the current conditions does not matter.
7. True or false; several forms of energy, (solar, electrical, and nuclear), are examples of potential and kinetic energy on the atomic scale.
Explanation / Answer
Q1 = m*c*(T-Ti)
Q1 = 100*0.387*(45-21) = 928.8J
6.
state function --> depends onnly of current conditions ,therefore TRUE
7.
TRUE, if you relate eventually all is either kinetic (movement of electorns) and potential (charges forces, moving across)