Answer:
0.004012km
Explanation:
Problem:
Conversion of millimeters(mm) to Kilometers:
value given = 4012mm
Here, we are converting from a submultiple unit to a multiple unit.
Millimeter depicts 10⁻³m and kilometer stands for 10³m
Now, we must find how many exponents will take us from 10⁻³ to 10³
careful examination shows that if we multiply a power of 10⁶ to 10⁻³ it will give a 10³:
i.e 10⁻³ x 10⁶ = 10⁻³⁺⁶ = 10³
Therefore,
10⁶mm = 1km
4,012mm = = 0.004012km
Answer :
(a) The heat released by the metal is -312.48 J
(b) The specific heat of the metal is
Explanation :
<u>For part A :</u>
Heat released by the metal = Heat absorbed by the calorimeter + Heat absorbed by the water
where,
q = heat released by the metal
= heat absorbed by the calorimeter
= heat absorbed by the water
= specific heat of calorimeter =
= specific heat of water =
= mass of water = 50.0 g
= change in temperature =
Now put all the given values in the above formula, we get:
Thus, the heat released by the metal is -312.48 J
<u>For part B :</u>
q = heat released by the metal = -312.48 J
m = mass of metal = 43.1 g
c = specific heat of metal = ?
= change in temperature =
Now put all the given values in the above formula, we get:
Thus, the specific heat of the metal is