Explain the following terms: (i) Internal energy of a system (ii) Bomb calorimeter

Q: CeH6ln + 15 O2(g)12 CO2(g) + 6 H20() AH = -5.854 x 10 kJ in unknown amount of CEH6() was combusted…

A: The question is based on the concept chemical thermodynamics.   We have been given heat value.   We…

Q: The specific heat capacity of lead at 25°C is 1.290×10-1 J/g/K. Answer the following: (a) For a…

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Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Given,The mass of K2SO4 = 9.07 gThe mass of water = 110.50 gInitial temperature of the solution =…

Q: When a 8.00 g sample of KCI is dissolved in water in a calorimeter that has a total heat capacity of…

A: Given : Mass of KCl dissolved = 8 g Total heat capacity of calorimeter = 6.15 KJ/K And change in…

Q: . (a) We place 77.7 g of a metal at 10.00 ◦C in 333.3 g of water at 70.00 ◦C. The water is in a…

A: Dear student, we are authorised to solve only one question at a time. Please post rest of the…

Q: Write a balanced equation and draw an approximate enthalpy diagram for (a) combustion of 1 mol of…

A: To find: The balanced equation and enthalpy diagram for the given process.

Q: Define the term Heat Capacity?

A: Concept introduction: Heat is arises by difference in the temperature of an object and it is also a…

Q: 6000 joules of energy from the surroundings , what is the change in internal energy of the system it…

A: Internal energy of the thermodynamic system is the energy possessed by the system on account of heat…

Q: Two aircraft rivets, one iron and the other copper, are placed in a calorimeter that has an initial…

A: Given: Initial Temperature=20°C

Q: Write a balanced equation and draw an approximate enthalpy diagram for each of the following: (a)…

A: (a)

Q: Write a balanced equation and draw an approximate enthalpy diagram for each of the following: (a)…

A: (a) the formation of 1 mol of sodium chloride from its elements (heat is released) (b) the…

Q: About 6.0 × 1013 kg of CO2 is fixed (converted to more complex organic molecules) by photosynthesis…

A: Given that, 6.0 × 1013 kg of CO2 is fixed (converted to more complex organic molecules) by…

Q: 1. During an experiment, a student added 35 J of heat to a system. At the same time, the environment…

A: According to first law of thermodynamics , increase in internal energy of the system is given by ∆U=…

Q: When a 2.00 g sample of KSCN is dissolved in water in a calorimeter that has a total heat capacity…

A: The molar heat is the quantity of heat required by one mole of a substance to raise its temperature…

Q: b) What is the change of enthalpy when 252 ml of methanol (density = 0.924 g/ml) are combusted to…

A: Given- Volume of methanol = 252 ml Density = 0.924 g/ml To find- Change in enthalpy of combustion…

Q: 2.8 A sample of the sugar D-ribose (C;H1,05) of mass 0.727 g was placed in a calorimeter and then…

A: The energy of combustion and enthalpy of formation of D-ribose is calculated below:

Q: The combustion of 0.579 g of benzoic acid in a bomb calorimeter caused a 2.08°C increase in the…

A: no of mol of benzoic acid = w/M = 0.579/122 = 0.004745 mol amount of heat released = 385.2*0.004745…

Q: The heat of formation of diatomic fluorine gas, F2(g), is zero. Why is this the case?

A: Gas given is fluorine i.e F2 gas.The standard heat of formation is zero.

Q: Two baking sheets are made of different metals. You purchase both and bake a dozen cookies on each…

A: (a) Specific heat capacity of a metal is the amount of heat required to raise the temperature of 1 g…

Q: A system gains 727 kJ727 kJ of heat, resulting in a change in internal energy of the system equal to…

A: As we know; deltaU = Q + W  where delta U is change in internal energy  Q = heat produced  W =…

Q: A chemical reaction is run in which 152 Joules of heat are generated and 461 Joules of work are done…

A: Given: In a chemical reaction 152 Joules of heat are generated and 461 Joules of work are done by…

Q: 17) A coffee-cup calorimeter is filled with 200.0 mL of water at 22.1 °C. A piece of metal at 48.6…

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Q: (1) Calculate (a) q when a system does 54 J of work and its energy decreases by 72 J. (b) DE for…

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Q: An experiment is performed in the chemical lab, 405 J of heat is absorbed by a system and 285 J of…

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Q: When a 3.00 g sample of RbBr is dissolved in water in a calorimeter that has a total heat capacity…

A: First we need to calculate the heat using heat capacity and temperature change.  Then we need to…

Q: Copper has been used for thousands of years, either as a pure metal or in alloys. It is frequently…

A: Energy to recycle is 1.40 mol Cu  Step 1: CuO(s) to Cu(s) q1=1.40*155 = 217 kJ   Step 2: Cu(s) at 25…

Q: The distance between Sherbrooke and Montreal is 137km. However, a car driving between the two points…

A: Answer - State function - State function: The properties which depends only on initial and final…

Q: The complete combustion of salicylic acid releases 21.90 kJ of energy per gram of salicylic acid. In…

A: Answer: Since, calorimeter used in both the cases is same, therefore from the salicylic acid data,…

Q: When a 3.00 g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of…

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