(Answered) A sealed container containing 40 mol of gas is squeezed

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A sealed container containing 4.0 mol of gas is squeezed, changing its volume from 0.020 m^3 to 0.018.m^3 During this process, the temperature decreases by 9.0 K while the pressure increases by 450 Pa. What was the original pressure and temperature of the gas in the container?

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