How does the science of heat transfer differ from the science of thermodynamics?
Science that deals with the amount of energy transferred from one equilibrium state to another equilibrium state.
Expert Solution & Answer
To determine
The difference between science of heat transfer and science of thermodynamics.
Explanation of Solution
Heat transfer is defined as the science which deals with the rate of transfer of energy. It tells about the basic information of the amount of heat transfer at a specified instantaneous time. Transfer of heat occurs when there is difference in the temperature of the body and the surroundings. It does not achieve equilibrium stage as heat transfer is a non-equilibrium phenomenon.
Whereas,the science of thermodynamics deals with the amount of heat transfer when a system experiences state change. It does not give any information about the rate of energy transfer.
Thermodynamics system does not give any information related to the nature of the state change.Heat transfer takes place from the region of higher temperature to the region of low temperature.
Fig.-1: Modes of heat transfer.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
During some actual expansion and compression processes in piston–cylinder devices, the gases have been observed to satisfy the relationship PVn = C, where n and C are constants. Calculate the work done when a gas expands from 350 kPa and 0.03 m3 to a final volume of 0.2 m3 for the case of n = 1.5.
The work done in this case is kJ.
Carbon dioxide contained in a piston–cylinder device is compressed from 0.3 to 0.1 m3. During the process, the pressure and volume are related by P = aV–2, where a = 6 kPa·m6. Calculate the work done on carbon dioxide during this process.
The work done on carbon dioxide during this process is kJ.
The volume of 1 kg of helium in a piston–cylinder device is initially 5 m3. Now helium is compressed to 3 m3 while its pressure is maintained constant at 130 kPa. Determine the initial and final temperatures of helium as well as the work required to compress it, in kJ. The gas constant of helium is R = 2.0769 kJ/kg·K.
The initial temperature of helium is K.
The final temperature of helium is K.
The work required to compress helium is kJ.
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.