A 63 gram piece of magnesium absorbs 6689 joules of heat. The final temperature is 663 degrees Celsius. What was the initial temperature? ( the specific heat of magnesium is 1.023 j/g degrees Celsius)

Explanation:

When heat is supplied to a substance, the temperature of the substance increases according to:

where

Q is the amount of heat supplied

m is the mass of the substance

C is the specific heat capacity of the substance

is the initial temperature

is the final temperature

For the sample of magnesium in this problem, we have:

m = 63 g is the mass

Q = 6689 J is the hear supplied

C = 1.023 J/gC is the specific heat capacity

is the final temperature

Solving the formula for , we find the final temperature:

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8