the following is a physics question. Thank you in advance

A cylinder with a movable piston contains 0 1. No a gas as shown below. A weight is placed on top of the piston. When 100 Joules of heat is 2. Yes; conservation of energy. added to the gas, the internal energy of the gas increases by 50 Joules and the piston rises, 3. Yes; the second law of thermodynamics. doing 75 Joules of work. 4. Yes; the first law of thermodynamics. Mass K Heat Heat Heat Does this process violate any law of physics