A gas is confined to a cylinder under constant atmospheric pressure. When 0.49 kJ of heat is added to the gas, it expands and does 214 J of work on the surroundings. What are the values of ∆H and ∆E for this process?

Q: The specific heat capacity of water (l) is 1.18 J/g∙℃. What is the molar specific heat capacity of…

A: Given:specific heat capacity of water (l) = 1.18 J/g∙℃.molar mass of water = 18.01 g/mol.

Q: An 80.0 g sample of a gas was heated from 25 ∘C25⁢ ∘C to 225 ∘C.225⁢ ∘C. During this process, 346 J…

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Q: A certain closed system absorbs 150 J of heat and does 210 J of work. Which of the following about…

A: Given that : Amount of heat energy absorbed = 150 J Work done by the system = 210 J We have to…

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Q: A 75.1 g. piece of an unknown metal is heated up 45.2 °C when given 2945 J of heat.  What is the…

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A: Given , mass of glucose , m=1.13 g heat capacity Cg=14.0 KJ/°C Initial temperature, Ti=17.7°C Final…

Q: 1. What is the sign of q and w if heat is released from the system and work is done by the…

A: As the heat is released from the system that mean system lost some heat to the surroundings. So, q…

Q: A certain closed system absorbs 150 J of heat and does 210 J of work. Which of the following about…

A: Given: Work done by the system = 210 J And heat absorbed by the system = 150 J

Q: 151.0-g sample of a metal at 75.0°C is added to 151.0 g H20  at 14.2°C. The temperature of the water…

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Q: Calculate the work done when a gas is compressed from 121.0 L to 80.0 L at a constant pressure of…

A: work don by the gas at constant pressure is given by  W = -PΔV where W = work done by gas P =…

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Q: Consider the following reaction: 2 Mg + O2  2 MgO,  Hrxn = -1,203 kJ.Calculate the amount of heat…

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Q: An 80.0 g sample of a gas was heated from 25 ∘C to 225 ∘C. During this process, 346 J of work was…

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A: Given : Mass of water = 1 kg = 1000g Pressure = 1 atm Initial temperature, t1 = 25°C Final…

Q: 2. Two metals of equal mass with different heat capacities are subjected to the same amount of heat.…

A: Since the relationship between heat supplied and change in temperature is given by  Q = mCΔT where m…

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Q: a gas is confined to a cylinder under constant atmospheric pressure. when 600 J is added to the gas,…

A: Given:  Amount of heat added = 600 J  Work done on the surroundings= 140 J  To Calculate: ∆E and ∆H…

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Q: Two metals of equal mass with different heat capacities are subjected to the same amount of heat.…

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Q: An 80.0 g sample of a gas was heated from 25 ∘C25 ∘C to 225 ∘C.225 ∘C. During this process, 346 J of…

A: ⊙We know that,            ◁E=q+w          ◁E→Internal energyq→heatw→work⊙For work(w)…

Q: A 149.2-g sample of a metal at 74.4°C is added to 149.2 g H20 at 15.5°C. The temperature of the…

A: Given: Specific heat of water = 4.18 J/g. oC Mass of metal = 149.2 g Mass of water = 149.2 g.…

Q: 50.0 g sample of copper is at 25 °C. If 1200 J of energy is added to the copper by heat, what is its…

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Q: See Periodic Table Table sugar (sucrose) is hydrolyzed to form glucose (a simple sugar) according to…

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Q: A 151.6-g sample of a metal at 74.7°C is added to 151.6 g  at 15.9°C. The temperature of the water…

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Q: An unknown sample of coal is burned in an apparatus with a calorimeter constant of 0.75 kJ/°C. When…

A: Given:  Calorimeter constant(C)= 0.75 KJ/°C  Mass of sample(m) = 0.412 gm  Increase in temperature…

Q: III WICI a process occurs at constant external pressure. a) What is the sign of w for the system? Is…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…