Answer:
The correct answer is <em><u>absorption</u></em>.
Explanation:
Absorption is the process in which electrons jumps from lower energy level to higher energy level by absorbing energy. The spectrum obtained by transmitting the electromagnetic radiations through the substance is known as absorption spectrum. This spectrum shows dark lines or black bands due to absorption of the specific wavelength.
So, the question would would probably ask if the gold ring is indeed pure gold. Let's calculate the specific heat capacity of the calorimeter. If this is equal to the given specific heat for pure gold, then the the gold ring is pure gold.
Qwater = mCdT = (50 g)(4.18 J/gC)(31 - 23.7) = 1525.7 J
Through conservation of energy,
Qwater = Qcalorimeter = mCdT = 1525.7
1525.7 = (10.5)(C)(78.3 - 31)
Solving for C,
C = 3.072 J/gC
Since the specific heat of the calorimeter is not equal to that of the pure gold (0.1291 J/gC), then the gold ring is not pure.
Answer:
gives shape and support to the body
Answer: A chemical reaction that stores energy is called an endothermic reaction. More energy might be released as products form than the energy needed to break the reactants apart.
Explanation: