Answer:
70.91 kJ
Step-by-step explanation:
The amount of energy (in kJ) required to increase the temperature of 255 g of water from 25.2 C to 90.5 C can be calculated using the formula:
Q = m * c * ΔT
Where Q is the amount of energy, m is the mass of the substance, c is the specific heat, and ΔT is the change in temperature.
Substituting the given values:
m = 255 g
c = 4.184 J/g C
ΔT = (90.5 - 25.2) C = 65.3 C
Q = 255 g * 4.184 J/g C * 65.3 C
Q = 70905.564 J
Q = 70.91 kJ (rounded to two decimal places)
Therefore, the amount of energy required to increase the temperature of 255 g of water from 25.2 C to 90.5 C is 70.91 kJ.