th$.10$ # $6$

A CUG themoneter is calibrated in dy ice $(-78\mathrm{.}5c)+$ in builing ethyl alcohol $(78\mathrm{.}0$ c $)$ The sepeate pressues ore $0\mathrm{.}900$atm$+1\mathrm{.}635$ atm $.$ What pressure would be fond at the boiling Point of $H_{2}O$