How much thermal energy needs to be added to 0.455 kg of benzene to heat it from 30*c to 50*c

15834 joules is the thermal energy required.

Explanation:

Specific heat capacity of benzene= 1.74 J/gK or 1740 J/Kg K

mass of benzene = 0.455 kg

temperature change= 50-30

                                    =  20 degrees

From the formula:

Specific heat capacity= thermal energy/ (mass)*(temperature change)

thermal energy=  0.455* 1740*20  ( speicfic heat of benzene is converted        

                                                                 to joules per gram)

                              = 15834 joules

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

hope this

tobey

what is the statement?