A 30.g sample of Al(s) is heated to 50°C and placed in a calorimeter containing 150g of water at 20°C. As the system approaches thermal equilibrium, energy is transferred from the Al(s) to the water and the temperature of the water decreases

Answer A: from the A l, solid to the water and the temperature of the water decreases
A

from the Al(s) to the water and the temperature of the Al(s) decreases

Answer B: from the A l, solid to the water and the temperature of the A l, solid decreases
B

from the water to the Al(s) and the temperature of the water increases

Answer C: from the water to the A l, solid and the temperature of the water increases
C

from the water to the Al(s) and the temperature of the Al(s) increases

Energy is transferred from the Al (solid) to water and the temperature of the water increases while the temperature of the Al (solid) decreases.

Heat energy is a form of energy transferred from one body to another due to a temperature difference between the bodies.

Heat energy is also known as thermal energy.

In heat transfer, heat is transferred from a body at higher temperature to a body at lower temperature.

In the heat transfer between the heated aluminium and the water, the solid aluminium is at a higher temperature than the water, hence, heat energy is transferred from the aluminium to water.

Therefore heat energy is transferred from the Al (solid) to water and the temperature of the water increases while the temperature of the Al (solid) decreases.

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