Question #cb41a

1 Answer
Sep 11, 2017

Answer:

0.06 #(cal)/(g^@C)#

Explanation:

We know that,
Heat Absorbed or Released Which is Responsible for Temperature Change = #H = msDeltat#

Here Heat Needed = H = 26 KJ = 26000 J = 26000*0.24 cal = 6240 cal
Total Mass of Kryptonite = m = 21 kg = 21000 grams [I prefer CGS while doing heat problems ;-)]
Change in Temperature = #Delta#T = #(60 - 10)^@#C = #50^@#C

Substituting all values in the specified equation, we get,

       6240 = 21000 * s * 50

#rArr# s = #(6240)/(21000*50)#
#rArr# s = #0.06# #(cal)/g^@C#