The freezing temperature of a gas depends on the specific gas and the pressure at which it is held. For example, at atmospheric pressure, the freezing temperature of carbon dioxide is -78.5 degrees Celsius (-109.3 degrees Fahrenheit), while the freezing temperature of helium is -268.9 degrees Celsius (-452 degrees Fahrenheit). The freezing temperature of a gas increases as the pressure increases, and decreases as the pressure decreases.