Question

A system has internal energy equal to U1, 450 J of heat is taken out of it and
600 J of work is done on it. The final energy of the system will be -
(1) (U1 + 150)
(2) (U1 + 1050)
(3) (U1 - 150)
(4)None of these​

Answer 1

Answer:

U2= U1 + (-450)+600

= U1 + 150

so,(I) is correct option