7. A 0.5 m3 rigid tank contains nitrogen gas at 600 kPa and 300 K. Now the gas is compressed isothermally to a volume of 0.1 m3. The work done on the gas during this compression process is: Oa) -720 kJ Ob) -175 kJ Oc) -483 kJ Od) -143 kJ Oe) None of above

Please answer and no reject ,need max in 30 minutes thank y It is reported that a gas is taken through a series of five operations, finally arriving at the same temperature, pressure, and volume it possessed originally Step 1: the system absorbs 220 kj of heat and performs 300 k) of work on the surroundings Step 2: the system loses 110 kj of heat while he volume constant Step 3: 110 kj of work is done on the system and it absorbs 60 kj of heat Step 4: the system loses 160 kg of heat while the volume remains constant Step Sithe system absorbs 290kj of heat and does 220 kj of work on the surroundings Can you say whether this report is corrected or not?

A 124 gram ice cube at -33°C is placed into a 2.50 kg iron container (assume no energy is transfered as heat to or from the surroundings). The temperature of the iron container drops by 55°C. Calculate the final temperature in °C of the water in the container. The density of water is 1.00g/mL and the heat capacity of ice to be 37.7 J mol-1K-1 and the heat capacity of water is 75.3 J mol-1K-1. The molar enthalpy of fusion of water is 6.01 kJ/mol and the heat capacity of iron is 0.45 J/(gK).

Consider a piston (or box) pressurized with air. Suppose you compress the piston so that the final volume is half the starting volume but the temperature remains the same.  For a reversible process, i) would the work done on the system be the same or change whether you modeled the gas ideal or real? ii) For an irreversible process, would the work done on the system be the same or change whether you modeled the gas as ideal or real assumng that you applied the same external force for compression? Explain your answer.