Transcription and Explanation:---**11.4** If 42.0 kJ of heat is added to a 32.0-g sample of liquid methane under 1 atm of pressure at a temperature of −170°C, what are the final state and temperature of the methane once the system equilibrates? Assume no heat is lost to the surroundings. The normal boiling point of methane is −161.5°C. The specific heats of liquid and gaseous methane are 3.48 and 2.22 J/g-K, respectively [find more in **Section 11.4**].---**Diagram Explanation:**- **Apparatus Description:** The diagram shows a cylindrical container with a piston at the top, maintaining a constant pressure of 1.00 atm on the contained sample.- **Initial Conditions:** Inside the container is 32.0 g of liquid methane at a temperature of −170°C.- **Heat Addition:** An arrow, labeled "42.0 kJ," points towards the container, indicating the heat supplied to the system.- **Additional Data Included:** - The enthalpy of vaporization, ΔHvap, is given as 8.20 kJ/mol. - The initial state temperature, \( T = -170°C \).This setup is used to determine how the provided heat energy affects the state (liquid or gas) and temperature of the methane once equilibrium is reached. The critical values needed to solve this problem (boiling point and specific heats) are also provided.

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Answered: 11.4 If 42.0 kJ of heat is added to a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Thermodynamics Question: The value of Henry's constant for 02 dissolved in water at 300 K is 45,000 bar. Water is exposed to air containing 20% 02 at pressure 100 kPa. What is the mole fraction of 02 in the water?
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18
PROBLEM 2 In general, the disposal of hot streams to the environment is not a good a practice due to the risk of violating EPA regulations and also, it represents as waste of potential useful energy. For example, raising the temperature of lakes, rivers, and atmosphere have negative consequences on the ecosystems. In this problem, a gas stream at 500°C contains eight percent mole carbon monoxide and the balance carbon dioxide. Before disposing this gas mixture stream into the atmosphere, it makes sense to recover some of its energy first. To achieve this we will use a heat exchanger where the gas stream flows across the tubes. Water flows inside the tubes entering at 25°C and it is fed at a ratio of 0.2 mole water per mole of the hot gas. The water is heating to its boiling point forming saturated steam at five bar. The steam produced can be used for heating or power generation in the facilities or as the feed for another unit operation. You can assume that heat exchanger is thermally…
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What is the temperature of the first liquid phase formation when 40% wt% Sn-60% Pb is heated? T(°C) 300 200+ 100+ Answer: 0 α L+a 18.3 20 Pb-Sn system L (liquid) 183°C 61.9 a + ß 60 C, wt% Sn 80 +BB 97.8 100
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