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What is w when a gas is compressed from 36.3 L to 26.3 L using a constant external pressure of 781 Torr? Remember to include a "+" or "-"sign as appropriate. Note: 760 Torr = 1 atm = 1.01325 bar = 101.325 kPa Enter your answer in acceptable si units, accurate to 3 significant figures. Use an acceptable Sl symbol for units. Number Units What is w when 1.25 kg of H2O(l), initially at 25.0C, is converted into water vapour at 151 C against a constant external pressure of 1.00 atm? Assume that the vapour behaves ideally and that the density of liquid water is 1.00 g/mL. (Remember to include a "+" or "-"sign as appropriate.) Enter your answer in acceptable SI units, accurate to 3 significant figures. Use an acceptable Sl symbol for units. Number Units What is the internal energy change for the system if 675 joules of heat flows into the system from the surroundings and 319 joules of work is done by the system on the surroundings? Enter an integer, with a "+" or "-"sign as appropriate. Don't forget to include an appropriate si abbreviation for the units. Number Units