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Total Heat Supplied to Gas represents the total energy transferred to a gas system, which includes both the change in internal energy and the work done by or on the system. It is a fundamental concept in thermodynamics.
The calculator uses the formula:
Where:
Explanation: This equation is derived from the first law of thermodynamics, which states that the total heat supplied to a system equals the change in its internal energy plus the work done by the system.
Details: Calculating total heat is essential for understanding energy transfer in thermodynamic processes, analyzing system efficiency, and designing thermal systems in engineering applications.
Tips: Enter the change in internal energy and work done in Joules. Both values must be non-negative numbers.
Q1: What is the first law of thermodynamics?
A: The first law of thermodynamics states that energy cannot be created or destroyed, only transferred or converted from one form to another. The total heat supplied equals the change in internal energy plus work done.
Q2: What are the units used in this calculation?
A: The standard unit for energy in the International System of Units (SI) is the Joule (J). All inputs and outputs are in Joules.
Q3: Can work done be negative?
A: Yes, work done can be negative when work is done on the system rather than by the system. However, this calculator requires non-negative inputs for simplicity.
Q4: How is this different from enthalpy?
A: Enthalpy (H) includes internal energy plus the product of pressure and volume (H = U + PV), while total heat supplied refers specifically to the energy transferred as heat.
Q5: What are some practical applications of this calculation?
A: This calculation is used in designing heat engines, refrigeration systems, power plants, and analyzing various thermodynamic cycles in engineering applications.