A constant-volume gas thermometer is calibrated in dry ice (-80.0C ) and in boiling ethyl alcohol (78. The respective pressures are 0.900 atm and...

A constant-volume gas thermometer is calibrated in dry ice (-80.0°C ) and in boiling ethyl alcohol (78.0°C ). The respective pressures are 0.900 atm and 1.635 atm. (Note that we have the linear relationship P = A + BT, where A and B are constants.)(a) What value of absolute zero does the calibration yield? What pressures would be found at the freezing and boiling points of water?