Final answer:
The force exerted by the gas on the piston is 60 N. If the height of the piston changes to 0.03 m and temperature remains constant, the force remains unchanged at 60 N due to constant pressure.
Step-by-step explanation:
The question asks to find the force exerted by the gas on the piston when the piston has a face area of 0.40 m² and the pressure of the gas is 150 Pa. The force can be calculated using the equation F = P × A, where F is the force, P is the pressure, and A is the area of the piston. When the area (A) is 0.40 m² and the pressure (P) is 150 Pa, the force (F) exerted by the gas is F = 150 Pa × 0.40 m² = 60 N (Newtons).
If the piston is moved to a height of 0.03 m, assuming the temperature remains constant and thus the pressure remains constant due to Boyle's Law, the force exerted by the gas will not change because the pressure and area have not changed. Hence, the force will remain at 60 N.