During an Isothermal Process $5.0 \mathrm {~J}$ Of Heat Is Removed from an Ideal Gas

Multiple Choice

During an isothermal process, $5.0 \mathrm {~J}$ of heat is removed from an ideal gas. What is the change in internal (thermal) energy of the gas?

A) $10 \mathrm {~J}$
B) $2.5 \mathrm {~J}$
C) $5.0 \mathrm {~J}$
D) $0 \mathrm {~J}$