Calculate the t90 (shelf-life) for your unknown at 70 °C assuming the activation energy, Ea, for the process is 105 kJ/mol. Show all work. Symbolically state the equations you are using defining all variables and constants. (Hint, the material in U5 M3 under "Temperature Effects" may prove useful).Given:R = 0.008314K1 = 5 E-08T1 = 70 °C = 273.16 KT2 = 24 °C = 297.15 KEa = 73 kJ/mol

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.

Those are different gas lawshere is a brief description of themcharles's law states that volume and temperature are directly proportional to each other as long as pressure is held constant.  boyle's law asserts that pressure and volume are inversely proportional to each other at fixed temperature.gay-lussac's law introduces a direct proportionality between temperature and pressure as long as it is at a constant volume.    source:

I'm pretty sure the answer is alcohol