A system absorbs 1.66E2 kJ of heat and the surroundings do 1.032E2 kJ of work on the system. What is the change in internal energy (in kJ) (ΔE) of the system

Q: What is the change in internal energy of the system   (ΔU)  if   50 kJ   of heat energy is released…

A: Given - Heat energy released (q)= 50KJ              Work done by the system (w)= 40KJ   We have to…

Q: Calculate the enthalpy of reaction (ΔHrxn), in kJ, for the following reaction: Fe2O3(s) + 3 CO(g) →…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: Air in an inflated balloon (system) is warmed and absorbs 833. J of heat. The surroundings also…

A: Given,Heat absorbed by inflated balloon system = 833 JWork done on the balloon system by the…

Q: A 35.0 mL solution of 0.600 M compound A is mixed with an excess of compound B solution at 12.8 C in…

A: Since the temperature of the solution inside the calorimeter is increased, heat is absorbed by the…

Q: When a 7.00 g sample of KCN is dissolved in water in a calorimeter that has a total heat capacity of…

A:

Q: Write out the chemical reaction whose enthalpy is the heat of formation of gaseous methane, CH4.

A: Standard equation of formation is equation represents formation of one mole compound from its…

Q: A 50.0 mL sample of a 1.00 M solution of CuSO4 is mixed with 50.0 mL of 2.00 M KOH in a calorimeter.…

A: Given,Volume of CuSO4 = 50.0mL.Volume of KOH = 50.0mL.Initial temperature = 23.5 degree CelsiusFinal…

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O2(g) → 2PbO(s)…

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Q: A system does 521 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

A: The objective of the question is to calculate the change in internal energy (ΔE) of a system that…

Q: What is the work involved in a process where a system experiences a net loss of energy equal to 4.6…

A:

Q: A system undergoes a process consisting of the following two steps: Step 1: The system absorbs 69 J…

A: Given data,Step 1:Heat(Q)=69JWork(w)=-34J(-ve sign represent work is done on the system)Step…

Q: What is the change in internal energy for a system which loses 422 J of heat, and on which 227 J of…

A: According to first law of thermodynamics the change in internal energy is expressed as shown below:

Q: kJ

A:

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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Q: Pentane (C5H12) is a component of gasoline  that burns according to the following balanced equation:…

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Q: What is the change in internal energy of a system that has 275 kcal of work done to it and it…

A: Internal energy is a function of the volume and the temperature. In a closed system of constant…

Q: give a specific example of a process that has the energy changes and transfers described. (For…

A: From the first law of thermodynamics, In an adiabatic process, there is no thermal contact between…

Q: Air in an inflated balloon (system) is cooled and loses 203. J of heat. The surroundings also…

A: Given that, A system looses 203.0 J of heat. The work is done by the surroundings is 79.8 J. Which…

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: As a system increases in volume, it absorbs 50.33 of energy in the form of heat from the…

A: The internal energy of the system can be modified by doing work on them or by adding heat to the…

Q: Consider the hypothetical reaction: A + 3B → 2C, which gives ΔH0 = 357.2 kJ. Determine the enthalpy…

A: To determine the enthalpy of the reverse reaction, just change the sign of the given enthalpy value.…

Q: If a system has 225 kcal of work done to it, and releases 5.00 x 102 kJ of heat into its…

A: Given,  A system has 225 KCal of work done to it and it releases 5.00×102 KJ of heat the internal…

Q: A gas is heated by adding 30. kJ of heat to the gas.  As it heats, it also expands from 30. L to 50.…

A: • The values provided in the question are:-  i) Quantity of heat energy absorbed by the gas, Q = 30…

Q: The standard enthalpy change for the following reaction is -576 kJ at 298 K. 2 Na(s) + I2(s) –→ 2…

A: Given,

Q: An air compressor used with a paint sprayer does 66.0  J of work pumping air into a tank. Warmed by…

A: Given, Work done, W = 66.0J. Heat transferred to surroundings, Q = 38.0J. As heat is released, it is…

Q: Consider the hypothetical reaction: A + 3B → 2C, which gives ΔH0= 357.2 kJ. Determine the enthalpy…

A: Exothermic reaction releases the energy during occurrence. Here, the enthalpy of the substrates is…

Q: 50.0 mL sample of a 1.00 MM solution of CuSO4CuSO4 is mixed with 50.0 mL of 2.00 MM KOHKOH in a…

A: The given reaction is, CuSO4+2KOH→CuOH2s+K2SO4 The given volume of CuSO4 is 50 mL. Volume of KOH is…

Q: The standard enthalpy change for the following reaction is 561 kJ at 298 K. Cd(OH)2(s) → Cd(s) +…

A: Cd(OH)2 (s)  -----> Cd(s) + O2(g)  + H2(g)   ∆Ho1 = 561 kJ   ........................(1) Cd(s) +…

Q: A chemical reaction takes place in an open flask. The reaction releases 355 kJ of heat and does 25…

A: According to the first law of thermodynamics the internal energy of a system can be mathematically…

Q: Consider the following reaction: 2Mg(s)+O2(g)⟶2MgO(s)                   ΔH∘=−1203 kJ What mass (in…

A: From stoichiometric equation, we will calculate the number of moles of magnesium that must be…

Q: Consider the following reaction: 2Mg(s)+O2(g)⟶2MgO(s)ΔH∘=−1203kJ What mass of magnesium must be…

A: Magnesium reacts with oxygen to form magnesium oxide. The equation for the balanced chemical…

Q: The standard enthalpy change for the following reaction is 265 kJ at 298 K. Hg,Cl2(s) →2 Hg(1) +…

A:

Q: A chemist measures the enthalpy change AH during the following reaction: 2 Al(s) + Fe,O3(s)→Al,O3(s)…

A: Enthalpy of a reaction is the net heat absorbed or released during a chemical reaction. It is…

Q: A 10.0-g sample of ammonium nitrate, NH4NO3, is added to 100.0 mL of water (density = 1.00 g/mL) in…

A: Given values: Mass of NH4NO3 = 10 g Density of water = 1 g/mL Inital temperature of calorimeter = 25…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.34 kg sample…

A: Mol= weight/ molar mass  first find the moles in 0.34kg

Q: Consider the change in the internal energy of a system. what is the change in the internal energy,…

A: According to the first law of thermodynamics, Change in U = Q - W where U = Internal Energy Q = Heat…