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Name Acetone Ammonia Benzene Methanol Propane m.m. 58.08 17.03 78.11 32.04 T+ -94.9 -77.65 5.538 -97.5 Ть 56.08 -33.33 80.08 64.5 44.1 -187.62 -42.11 AHfus 5.77 5.66 9.87 3.215 3.5 ΔΗναρ 29.1 23.33 30.72 35.21 19.04. *Temperatures in °C; enthalpies in kJ mol-1; specific heats in Jg-1°C-1 Cs 1.653 1.10 C₁ 2.409 2.061 1.703 1.16 Cg 1.283 1.741 2.531 2.025 1.669 1.376 Question 1 500.0 g of acetone is heated from - 100.0°C to 60 °C. How much heat (in kJ to two decimal places) is required for this process?

Name Acetone Ammonia Benzene Methanol Propane m.m. 58.08 17.03 78.11 32.04 T+ -94.9 -77.65 5.538 -97.5 Ть 56.08 -33.33 80.08 64.5 44.1 -187.62 -42.11 AHfus 5.77 5.66 9.87 3.215 3.5 ΔΗναρ 29.1 23.33 30.72 35.21 19.04. *Temperatures in °C; enthalpies in kJ mol-1; specific heats in Jg-1°C-1 Cs 1.653 1.10 C₁ 2.409 2.061 1.703 1.16 Cg 1.283 1.741 2.531 2.025 1.669 1.376 Question 1 500.0 g of acetone is heated from - 100.0°C to 60 °C. How much heat (in kJ to two decimal places) is required for this process?

Chemistry: Matter and Change
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter15: Energy And Chemical Change
Section: Chapter Questions
Problem 88A: A sample of ammonia (Hsolid=5.66kJ/mol) liberates5.66 kJ of heat as it solidifies at its melting...
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Heating curve data for some substances Name Acetone Ammonia Benzene Methanol Propane m.m. 58.08 17.03 78.11 Tf -94.9 -77.65 5.538 -97.5 Tb 56.08 -33.33 80.08 32.04 44.1 -187.62 -42.11 64.5 AH fus 5.77 5.66 9.87 3.215 3.5 AHvap 29.1 23.33 30.72 35.21 19.04. *Temperatures in °C; enthalpies in kJ mol-1; specific heats in J g-¹ °C-¹ Cs C₁ Cg 1.653 2.409 1.283 2.061 1.703 1.10 1.741 1.16 2.531 1.376 2.025 1.669 Question 1 500.0 g of acetone is heated from -100.0 °C to 60 °C. How much heat (in kJ to two decimal places) is required for this process? S Question 2 A 100.0 g sample of solid ammonia is heated from -77.65 °C to -40 °C. How much heat (in kJ to two decimal places) is required for this process? Question 3 A chemist accidentally leaves a 300.0 g sample of benzene on an activated hotplate. The benzene heats up from 25 °C to 100 °C and when the chemist returns, is surprised to see the benzene is gone. How much heat (in kJ to two decimal places) is required for this process?
Transcribed Image Text:Heating curve data for some substances Name Acetone Ammonia Benzene Methanol Propane m.m. 58.08 17.03 78.11 Tf -94.9 -77.65 5.538 -97.5 Tb 56.08 -33.33 80.08 32.04 44.1 -187.62 -42.11 64.5 AH fus 5.77 5.66 9.87 3.215 3.5 AHvap 29.1 23.33 30.72 35.21 19.04. *Temperatures in °C; enthalpies in kJ mol-1; specific heats in J g-¹ °C-¹ Cs C₁ Cg 1.653 2.409 1.283 2.061 1.703 1.10 1.741 1.16 2.531 1.376 2.025 1.669 Question 1 500.0 g of acetone is heated from -100.0 °C to 60 °C. How much heat (in kJ to two decimal places) is required for this process? S Question 2 A 100.0 g sample of solid ammonia is heated from -77.65 °C to -40 °C. How much heat (in kJ to two decimal places) is required for this process? Question 3 A chemist accidentally leaves a 300.0 g sample of benzene on an activated hotplate. The benzene heats up from 25 °C to 100 °C and when the chemist returns, is surprised to see the benzene is gone. How much heat (in kJ to two decimal places) is required for this process?
A 100.0 g sample of solid ammonia is heated from -77.65 °C to -40 °C. How much heat (in kJ to two decimal places) is required for this process?
Transcribed Image Text:A 100.0 g sample of solid ammonia is heated from -77.65 °C to -40 °C. How much heat (in kJ to two decimal places) is required for this process?
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