Which equation describes the change in internal energy for an ideal gas?
Practice Questions
Q1
Which equation describes the change in internal energy for an ideal gas?
ΔU = Q + W
ΔU = nC_vΔT
ΔU = nRT
ΔU = PV
Questions & Step-by-Step Solutions
Which equation describes the change in internal energy for an ideal gas?
Step 1: Understand that internal energy (U) is the energy contained within a system, like an ideal gas.
Step 2: Recognize that for an ideal gas, the change in internal energy (ΔU) depends on the amount of gas (n), the heat capacity at constant volume (C_v), and the change in temperature (ΔT).
Step 3: Identify the formula for the change in internal energy: ΔU = nC_vΔT.
Step 4: Note that C_v is a specific value that represents how much energy is needed to change the temperature of one mole of gas at constant volume.
