Question

Raising the temperature of 10.0 g of water from 10.0 °C to 20.0 °C requires 100.0 cal of energy, while raising the temperature of 10.0 g of aluminum from 10.0 °C to 20.0 °C requires 22 cal. More calories are required to heat the water because water is a liquid and aluminum is a solid at 10.0 °C. 10.0 °C is closer to the melting point of water than to the melting point of aluminum. water has a greater potential energy than aluminum. ten grams of water occupies a larger volume than 10.0 g of aluminum. water has a larger specific heat than aluminum.

Answer 1

Answer:

Explanation:

The change in enthalpy of a substance when heated is given by

ΔH = m x Csp x ΔT

so the enthalpy change is dependent on the specific heat , i.e its capactity to absorb heat, and is not influenced by factors such as being closer to the melting point, volume , potential energy or being a solid or liquid.