Cengage x / i: owLy2 | Online teachire x\' e The Following informati × Chapter 1

Question

Cengage x / i: owLy2 | Online teachire x' e The Following informati × Chapter 15: Mastery 1. Gases: Parial Pressures 1 pts 2req Tse the References to access important values if needed for this question. 2. Liquids: Vapor Pressure and Inte...pts 2req 3. Phase Changes and Energy Flo...pts 2req 1. Energy. Change of Stale The following information is given for manganese at latm boiling point 2095°C melting point-1244°C 1,ap-4.09 kJ/g Hfus-266 1 pts 2req Question Heat is added to a sample of solid manganese at its normal meltng point of 1244°C. How many grams of manganese vill melt if 14.4 kJ of energy are added? 5 Fnergy Specafic. Heat Caparity 1 pts 2req 6. Heat Iranster. Phase and lemp.. 1 pts 2req Submit Answer Retry Entire Group 9 more group attempts remaining Progress: 0V6 groups Due Dec 6 at 11:55 PM Next Email Instructor Save and Exit 3:35 PM

Explanation / Answer

manganese as solid to

1244 °C -->

mass which will melt if

Q = 14.4 kJ is applied = 14400 J

Q = mass * latent heat of fussion

14400J = mass * 266 J/g

mass = 14400/266 = 54.135 g of manganese will melt

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