The stability of atomic nuclei is related to - id2671283, Gtx014

Question

Chemistry: The stability of atomic nuclei is related to the ratio of protons to electrons ratio of neutrons to protons number of protons and neutrons number of electrons

Gtx014 · Accepted Answer

Answer : The specific heat of the metal is, 3.18J/g^oC

Explanation :

Heat released by the reaction = Heat absorbed by the calorimeter + Heat absorbed by the water

q=-[q_1+q_2]

$m\times c\times (T_f-T_1)=-[c_1\times (T_f-T_2)+m_2\times c_2\times (T_f-T_2)]$

where,

q = heat released by the reaction

q_1 = heat absorbed by the calorimeter

q_2 = heat absorbed by the water

c = specific heat of metal = ?

c_1 = specific heat of calorimeter = 125J/^oC

c_2 = specific heat of water = 4.18J/g^oC

m_2 = mass of water = 50.0 g

m = mass of metal = 11.6 g

T_f = final temperature = 28.2^oC

T_1 = temperature of metal = 98^oC

T_2 = temperature of water = 20.5^oC

Now put all the given values in the above formula, we get:

$11.6g\times c\times (28.2-98)^oC=-[125J/^oC\times (28.2-20.5)^oC+50.0g\times 4.18J/g^oC\times (28.2-20.5)^oC]$

c=3.18J/g^oC

Thus, the specific heat of the metal is, 3.18J/g^oC

The stability of atomic nuclei is related to the ratio of protons to electrons ratio of neutrons to protons number of protons and neutrons number of electrons

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