b) What happens to a sample of solid CO2 at room temperature and 1atm ? k c) What phase changes, if any, if CO2 initially at 80C and 8.0atm is allowed to warm to 25C ? d) At what temperature range can solid CO2 (dry ice) be converted into CO2 gas simply by lowering the pressure? e) What is the maximum pressure at which solid CO2 (dry ice) can be converted into CO2 gas without melting? f) If we increase the temperature from the compound at position Z to 60C keeping pressure constant, and next we increase pressure to 100atm while holding the temperature constant, what is the state of CO2