Answer Happy

Suppose a gas in a piston is compressed at constan pressure and the temperature of the gas goes down. Which of the following correctly describes the signs for the work, the heat for the system, and the energy change of the system? All are positive. Work is positive, q is negative, and there is not enough information to determine ΔE. Work is positive, q is negative, and ΔE is positive. Work is negative, q is positive, and there is not enough information to determine ΔE.