How many kilegrams solid nickel can be b. Nickel sulfide, NS, has standard ethal

Question

How many kilegrams solid nickel can be b. Nickel sulfide, NS, has standard ethalpy of Sormation - 8130kmol Determine the amount of energy tin k3) to needed to remove the nicket metal from 7,50 kg of N ( note that A- ku/mol c. The specific heat of solid nickel is 0.444 Ne C"). Determine the final temperature after 75.00 ki of heat is added to 13.0 pounds of nickel intially at-400 °C d. Use data above and: 2NSS) ,Ni(s) Nists) :-40.3 kJ Determine the value of AH-[NisS(s) AND write the thermochemical equation having that enthalpy change

Explanation / Answer

(c)

Using the relation:

Q = m*C*dT

Data given:

m = 13 pounds = 5896.7 g

Q = 75000 J

dT = (Tf-(-4))

Putting values:

75000 = 5896.7*0.444*(Tf-(-4))

Solving we get:

Tf = 24.650C

The first two parts are not clear in this pic.

Hope this helps !

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