If Delta U and Delta W represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true?

If Delta U and Delta W represent the increase in internal energy and w

1.	If Delta U and Delta W represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true?
Answer» `Delta U = - Delta W` in an adiabatic process `Delta U = Delta W` in an ISOTHERMAL process `Delta U = Delta W` in an adiabatic process `Delta U = - DeltaW` in an isothermal process Answer :A