Question 1 1.1 answer the following a. 230 BTUS are absorbed by a gas while the gas expands and perform 610 BTUS of work. Calculate the change in internal energy for this process b. A copper cylinder has a mass of 55.6 g and a specific heat of 0.092 cal/g- c. It is heated to 75.5 C and then put in 68.7 g of turpentine whose mass is 18.5 °C. The temperature of the mixture was measured to be 42.9 C. Calculate the specific heat of the turpentine c. A pot is filled with 9kg of water at 10 °C. Calculate how much heat energy would be needed to raise the temperature to 60 °C. [specific heat capacity of water = 4200J/kg °C] d. A refrigerator is used to cool 4 litres of soft drink from room temperature (23 °C) to 4 °C. If the density of the soft drink is 1015 kg/m³ (1 litre = 0.001 m³), how much heat must be removed if the specific heat of the soft drink is 4350 J/kg °C e. The chemical reaction presented below is not balanced. Balance it and calculate AH° and ASurr for this reaction at and 1 atm and 25 °C. CO(g) + H2(g) CH;OH(1)
Question 1 1.1 answer the following a. 230 BTUS are absorbed by a gas while the gas expands and perform 610 BTUS of work. Calculate the change in internal energy for this process b. A copper cylinder has a mass of 55.6 g and a specific heat of 0.092 cal/g- c. It is heated to 75.5 C and then put in 68.7 g of turpentine whose mass is 18.5 °C. The temperature of the mixture was measured to be 42.9 C. Calculate the specific heat of the turpentine c. A pot is filled with 9kg of water at 10 °C. Calculate how much heat energy would be needed to raise the temperature to 60 °C. [specific heat capacity of water = 4200J/kg °C] d. A refrigerator is used to cool 4 litres of soft drink from room temperature (23 °C) to 4 °C. If the density of the soft drink is 1015 kg/m³ (1 litre = 0.001 m³), how much heat must be removed if the specific heat of the soft drink is 4350 J/kg °C e. The chemical reaction presented below is not balanced. Balance it and calculate AH° and ASurr for this reaction at and 1 atm and 25 °C. CO(g) + H2(g) CH;OH(1)
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter9: Energy And Chemistry
Section: Chapter Questions
Problem 9.104PAE: 9.104 An engineer is using sodium metal as a cooling agent in a design because it has useful thermal...
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Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Question
![Question 1
1.1 answer the following
a. 230 BTUS are absorbed by a gas while the gas expands and perform 610
BTUS of work. Calculate the change in internal energy for this process
b. A copper cylinder has a mass of 55.6 g and a specific heat of 0.092 çalg- C.
It is heated to 75.5 C and then put in 68.7 g of turpentine whose mass is 18.5
°C. The temperature of the mixture was measured to be 42.9 C. Calculate the
specific heat of the turpentine
c. A pot is filled with 9kg of water at 10 °C. Calculate how much heat energy
would be needed to raise the temperature to 60 °C. [specific heat capacity of
water = 4200J/kg °C]
d. A refrigerator is used to cool 4 litres of soft drink from room temperature (23
°C) to 4 °C. If the density of the soft drink is 1015 kg/m3 (1 litre = 0.001 m³),
how much heat must be removed if the specific heat of the soft drink is 4350
J/kg °C
e. The chemical reaction presented below is not balanced. Balance it and
calculate AH° and ASurr for this reaction at and 1 atm and 25 °C.
CO(g) + H2(g)
CH;OH(1)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9fa45b50-5295-485b-a4c5-7e1484b16264%2Ff90cd5fb-751c-4748-8193-ed7785f06663%2Fjjvcf9q_processed.png&w=3840&q=75)
Transcribed Image Text:Question 1
1.1 answer the following
a. 230 BTUS are absorbed by a gas while the gas expands and perform 610
BTUS of work. Calculate the change in internal energy for this process
b. A copper cylinder has a mass of 55.6 g and a specific heat of 0.092 çalg- C.
It is heated to 75.5 C and then put in 68.7 g of turpentine whose mass is 18.5
°C. The temperature of the mixture was measured to be 42.9 C. Calculate the
specific heat of the turpentine
c. A pot is filled with 9kg of water at 10 °C. Calculate how much heat energy
would be needed to raise the temperature to 60 °C. [specific heat capacity of
water = 4200J/kg °C]
d. A refrigerator is used to cool 4 litres of soft drink from room temperature (23
°C) to 4 °C. If the density of the soft drink is 1015 kg/m3 (1 litre = 0.001 m³),
how much heat must be removed if the specific heat of the soft drink is 4350
J/kg °C
e. The chemical reaction presented below is not balanced. Balance it and
calculate AH° and ASurr for this reaction at and 1 atm and 25 °C.
CO(g) + H2(g)
CH;OH(1)
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