Answer : The change in temperature will be,
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Explanation :
Formula used :

where,
Q = heat absorb = 231 kJ = 231000 J (1 kJ = 1000 J)
m = mass of substance Y = 10.8 g
c = specific heat of substance =

= change in temperature = ?
Now put all the given value in the above formula, we get:
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Therefore, the change in temperature will be,
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