Question

Find the change in energy of a 550 mL cup cooling from 88°C to 10°C. The liquid also has a density of 1.38 g/mL.

Answer 1

To find the change in energy, we can use the formula: ΔE = mcΔT. In this case, we need to convert the volume of the cup to mass by using the density of the liquid. Since the density is given as 1.38 g/mL and the volume is 550 mL, the mass would be: mass = density × volume = 1.38 g/mL × 550 mL = 759 g. The specific heat of the liquid is not given, so we cannot calculate the change in energy.

Step-by-step explanation:

To find the change in energy, we can use the formula:

ΔE = mcΔT

Where ΔE is the change in energy, m is the mass, c is the specific heat, and ΔT is the change in temperature.

In this case, we need to convert the volume of the cup to mass by using the density of the liquid. Since the density is given as 1.38 g/mL and the volume is 550 mL, the mass would be:

mass = density × volume = 1.38 g/mL × 550 mL = 759 g

The specific heat of the liquid is not given, so we cannot calculate the change in energy.