Question

The average person adds roughly 14 grams of NaCl (58.4 g/mol) to 3.5 L of water when cooking pasta. This increases the boiling boint of water. We know that the rates of reaction are related to temperature. What is the relative rate of pasta cooking in pure boiling water, boiling salt water (14 g / 3.5 L), and boiling saturated aqueous NaCl solution?

Answer 1

T = i k_b m (from elevation in boiling point)

substituting values ,

we get,

T= 2 x 0.512x (14/58.4)x (1/3.5)

0.07,

we know that reactio rate doubles for a 10 ⁰ rise in the temperate,

so, since no other information is given such as Ea and rate constant.

i will use above statement for this case,

and for a 0.07 degree rise in temperature the rate will

increase by 0.0115% .

(rate is proprotional to )