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e. Find the final temperature if 150g of X, at 19°C, receives 650J of heat.

e. Find the final temperature if 150g of X, at 19°C, receives 650J of heat.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Core Heat Practice** The data below refers to an unknown substance, X: | Property | Value | |-------------------|-------------| | Melting Point | 32.0°C | | Boiling Point | 112.0°C | | Heat of Fusion | 425 kJ/kg | | Heat of Vaporization | 695 kJ/kg | | Specific Heat (solid) | 2.3 J/g°C | | Specific Heat (liquid) | 5.9 J/g°C | | Specific Heat (vapor) | 1.1 J/g°C | 1. **Draw a heating curve for substance X, going from 15°C to 125°C on the axis below. Write in all formulas used to calculate heat.** - **Graph Explanation:** - The heating curve is divided into different segments labeled A, B, C, and F, which correspond to various phase changes and temperature changes. - **Segment A (15°C to 32°C):** Increase in temperature of the solid form calculated using \( q = m \cdot s \cdot \Delta T \). - **Segment B (32°C to 32°C):** Melting at a constant temperature using \( q = m \cdot \Delta H_{fus} \). - **Segment C (32°C to 112°C):** Increase in temperature of the liquid form using \( q = m \cdot s_l \cdot \Delta T \). - **Segment at 112°C:** Vaporization using \( q = m \cdot \Delta H_{vap} \). 2. **Problems:** b. **Determine the amount of heat released when 15.0 g of gaseous X at 112.0°C changes to liquid at 112.0°C.** - \( q = 15.0 \times 695 \) kJ/g - Result: \( q = 10425 \) kJ c. **Determine the amount of heat necessary to convert 15.0 g of solid X at 32.0°C to liquid at 32.0°C.** - Formula: \( q = m \cdot \Delta H_{fus} \) - Heat of fusion: 425 kJ/kg d. **Determine the mass of X that
Transcribed Image Text:**Core Heat Practice** The data below refers to an unknown substance, X: | Property | Value | |-------------------|-------------| | Melting Point | 32.0°C | | Boiling Point | 112.0°C | | Heat of Fusion | 425 kJ/kg | | Heat of Vaporization | 695 kJ/kg | | Specific Heat (solid) | 2.3 J/g°C | | Specific Heat (liquid) | 5.9 J/g°C | | Specific Heat (vapor) | 1.1 J/g°C | 1. **Draw a heating curve for substance X, going from 15°C to 125°C on the axis below. Write in all formulas used to calculate heat.** - **Graph Explanation:** - The heating curve is divided into different segments labeled A, B, C, and F, which correspond to various phase changes and temperature changes. - **Segment A (15°C to 32°C):** Increase in temperature of the solid form calculated using \( q = m \cdot s \cdot \Delta T \). - **Segment B (32°C to 32°C):** Melting at a constant temperature using \( q = m \cdot \Delta H_{fus} \). - **Segment C (32°C to 112°C):** Increase in temperature of the liquid form using \( q = m \cdot s_l \cdot \Delta T \). - **Segment at 112°C:** Vaporization using \( q = m \cdot \Delta H_{vap} \). 2. **Problems:** b. **Determine the amount of heat released when 15.0 g of gaseous X at 112.0°C changes to liquid at 112.0°C.** - \( q = 15.0 \times 695 \) kJ/g - Result: \( q = 10425 \) kJ c. **Determine the amount of heat necessary to convert 15.0 g of solid X at 32.0°C to liquid at 32.0°C.** - Formula: \( q = m \cdot \Delta H_{fus} \) - Heat of fusion: 425 kJ/kg d. **Determine the mass of X that
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