  We study the low-temperature thermodynamics of weakly-interacting uniform
liquids in one-dimensional attractive Bose-Bose mixtures.~The Bogoliubov
approach is used to simultaneously describe quantum and thermal fluctuations.
First, we investigate in detail two different thermal mechanisms driving the
liquid-to-gas transition, the dynamical instability and the evaporation, and we
draw the phase diagram. Then, we compute the main thermodynamic quantities of
the liquid, such as the chemical potential, the Tan's contact, the adiabatic
sound velocity and the specific heat at constant volume. The strong dependence
of the thermodynamic quantities on the temperature may be used as a precise
temperature probe for experiments on quantum liquids.
