Question

Water has a heat of fusion of 6.01 kJ/mol. An iceberg in the Atlantic Ocean near Newfoundland contains 1.27 x 107 mol of water. How much thermal energy does it absorb as it melts? Answer using appropriate significant digits. Please record your work in your notes for future reference.

Answer 1

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Answer 2

Given - Heat of fusion : 6.01 kj/mol

Number of moles of water : 1.27*10⁷ mol of water.

Find - Energy absorbed on melting.

Solution - Energy absorbed can be calculated by the formula : Q = n*∆H. In the formula, q refers to amount of energy absorbed, n refers to number of moles and ∆H stands for molar enthalpy or heat of fusion.

Keeping the values in equation-

Q = 1.27*10⁷*6.01

Q = 7.6*10⁷ kJ.

Hence, the thermal energy absorbed on melting is 7.6*10⁷ kJ.