Physics · Thermodynamics · Kinetic Theory of Gases
Problem
One mole of a monatomic ideal gas undergoes an adiabatic expansion in which its volume becomes eight times its initial value. If the initial temperature of the gas is 100 K and the universal gas constant R = 8.0 J mol⁻¹ K⁻¹, the decrease in its internal energy, in Joule, is __________.