Question

Lead has a melting point of 327 °C, its specific heat capacity is 0.13 J/g °C and its molar enthalpy of fusion is 4.80 kJ/mol. How much heat will be required to heat a 365 g sample of lead from 20.4 °C to its melting point and then melt it completely? heat in kJ:

Name: lead has a melting point of 327 c its specific heat capacity is 013 jg c and its molar enthalpy of fusion is 480 kjmol how much heat will be required to heat a 365 g sample of lead from 204 53285
Uploaded: 2022-10-07T13:32:23-08:00
Duration: 1 min 26 s
Channel: David Collins
Description: lead has a melting point of 327 c its specific heat capacity is 013 jg c and its molar enthalpy of fusion is 480 kjmol how much heat will be required to heat a 365 g sample of lead from 204 53285

          Lead has a melting point of 327 °C, its specific heat capacity is 0.13 J/g °C and its molar enthalpy of fusion is 4.80 kJ/mol. How much heat will be required to heat a 365 g sample of lead from 20.4 °C to its melting point and then melt it completely?
heat in kJ:

Added by Allison B.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert David Collins

10/07/2022

Step 1

4 °C to its melting point at 327 °C. Given: Mass of lead (m) = 365 g Specific heat capacity of lead (c) = 0.13 J/g °C Change in temperature (ΔT) = 327 °C - 20.4 °C = 306.6 °C Use the formula: Q = mcΔT Q = (365 g)(0.13 J/g °C)(306.6 °C) Q = 14548 J Show more…

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Lead has a melting point of 327 °C, its specific heat capacity is 0.13 J/g °C and its molar enthalpy of fusion is 4.80 kJ/mol. How much heat will be required to heat a 365 g sample of lead from 20.4 °C to its melting point and then melt it completely? heat in kJ: