A 10.0 g piece of copper wire, sitting in the sun reaches a temperature of 80.0ºC. How many Joules are released when the copper cools to 40.0ºC? The specific heat capacity of copper is 0.377J/(g·ºC)

Q = -150.8 J

Explanation:

Given data:

Mass of copper = 10.0 g

Initial temperature = 80.0°C

Heat released = ?

Final temperature = 40.0 °C

Specific heat capacity of copper = 0.377J/(g·ºC)

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 40.0 °C - 80.0 °C

ΔT = -40.0 °C

by putting values,

Q = 10.0 g × 0.377J/g·ºC× -40.0 °C

Q = -150.8 J

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).