3 A mixture of fuel and air is enclosed in an engine cylinder fitted with a piston. The gas pressure is maintained at 7.07 × 105 Pa as the piston moves slowly inward. If the gas volume decreases by 1.1 × 10¯4 m³ and the internal energy of the gas increases by 62 J, how much energy is added to or removed from the system as heat?

3 A mixture of fuel and air is enclosed in an engine cylinder fitted with a piston. The gas pressure is maintained at 7.07 × 105 Pa as the piston moves slowly inward. If the gas volume decreases by 1.1 × 10¯4 m³ and the internal energy of the gas increases by 62 J, how much energy is added to or removed from the system as heat?