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A gas expands from [ to F in the figure. The energy added to the gas by heat is 448 J when the gas goes from I to F along the diagonal path. P (atm) s o = b W 0 1 2 3 4 V (liters) What is the change in internal energy of the gas? Answer in units of J. How much energy must be added to the gas by heat for the indirect path I AF to give the same change in internal energy? Answer in units of J. 6.9 cm of water is boiled at atmospheric pressure to become 3842.7 em? of steam, also at atmospheric pressure. Calculate the work done by the gas during this process. The latent heat of vaporization of water is 2.26 x 10 J /kg. Answer in units of J. Find the amount of heat added to the water to accomplish this process. Answer in units of J.