(Thermodynamics processes)

1. A certain gas is expanded adiabatically. The amount of work done by the gas is 304 J. What is the change in the internal (thermal) energy of the gas?
2. During an isothermal process, 2054 J of heat is gained by an ideal gas. What is the change in internal (thermal) energy of the gas?
3. The work done on an ideal gas system in an isothermal process is -939 J. What is the change in internal (thermal) energy of the gas?
4. In an adiabatic compression, 2490 J of work is done by a gas. What is the change in internal (thermal) energy of the gas during this expansion?
5. An ideal gas undergoes an adiabatic process while doing 835 J of work. What is the change in the internal (thermal) energy of the gas?