Final answer:
The mass of water that will change its temperature by 7.0°C when 1525 J of heat is added to it is approximately 0.052 kg or 52 grams.
Step-by-step explanation:
To determine the mass of water that will change its temperature by 7.0°C when 1525 J of heat is added to it, we need to use the formula:
q = mcΔT
where q is the heat added, m is the mass of the water, c is the specific heat capacity of water, and ΔT is the change in temperature.
Rearranging the formula to solve for m:
m = q / (cΔT)
Plugging in the given values:
m = 1525 J / (4186 J/kg/°C x 7.0°C)
m ≈ 0.052 kg or 52 grams