Final answer:
Specific heat is the energy required to change the temperature of a substance per unit mass. Use the formula q = m c ΔT to calculate the energy needed to raise the temperature of 50 grams of water by 20°C.
Explanation:
Specific heat is the amount of energy needed to raise the temperature of a substance by one degree Celsius per unit mass. In this case, to calculate the energy needed to raise the temperature of 50 grams of water by 20°C, you use the formula:
q = m c ΔT
where q is the heat energy, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature. Plug in the values and calculate the result.
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