Question

A peanut was burned to determine its energy content. The peanut's mass was 0.609 g before and 0.053 g after burning. The temperature of 200.0 mL of water in a calorimeter increased 14.5°C. If the specific heat of water is 4.18 Blg.°C then the amount of energy of the nut is Select one

12/122/3.
1720.00
2180076
93,6003

Answer 1

The amount of energy in the peanut is 3 large calories.

Step-by-step explanation:

To determine the energy content of the peanut, we need to calculate the amount of heat transferred to the water in the calorimeter. The formula to calculate heat is Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat, and ΔT is the change in temperature.

First, calculate the heat transfer to the water:

Q = (0.200 kg) ↓c ↓ΔT

= (0.200 kg)(4.18 Bg.°C)(14.5°C)

= 12.09 Bg.

Next, calculate the amount of energy in the nut: Energy = Q = 3 large calories.