Question

10.0 g of nickel is cooled to 2.0 °C and

placed into a sample of warm water.
The final temperature of the water and
nickel was 63.4 °C. How much energy
is absorbed by the nickel?
J
CNi = 0.120 g. C
9Ni = [?] J

Answer 1

73.68 J

Step-by-step explanation:

To find the energy absorbed by nickel, you need to use the following equation:

Q = mcΔT

In this equation,

-----> Q = energy (J)

-----> m = mass (g)

-----> c = specific heat (J/g°C)

-----> ΔT = change in temperature

The change in temperature is found by subtracting the initial temperature from the final temperature. You can plug the given values into the equation and simplify to find the energy absorbed.

m = 10.0 g

c = 0.120 J/g°C

ΔT = 63.4 °C - 2.0 °C = 61.4 °C

Q = mcΔT

Q = (10.0 g)(0.120 J/g°C)(61.4 °C)

Q = 73.68 J