What is the change in internal energy (ΔU) for an ideal gas that expands isother
Practice Questions
Q1
What is the change in internal energy (ΔU) for an ideal gas that expands isothermally? (2022)
0
nRT
nRΔT
PV
Questions & Step-by-Step Solutions
What is the change in internal energy (ΔU) for an ideal gas that expands isothermally? (2022)
Step 1: Understand what an ideal gas is. An ideal gas is a theoretical gas that follows the ideal gas law perfectly.
Step 2: Know what isothermal means. Isothermal means that the temperature of the gas remains constant during the process.
Step 3: Recall the definition of internal energy (U). Internal energy is the total energy contained within a system due to the kinetic and potential energy of its particles.
Step 4: Recognize that for an ideal gas, internal energy depends only on temperature.
Step 5: Since the temperature is constant in an isothermal process, the internal energy does not change.
Step 6: Therefore, the change in internal energy (ΔU) for an ideal gas that expands isothermally is zero.
