22. What is the change in internal energy (AE) when a system is heated with 35 J of energy while it does 15 J of work? а. +50 J d. -50 J b. +20 J е. +35 K c. -20 J

Q: lution of HI was found to have a pOH of 13.35 at 25 °C. What is the concentration of HI? a. 0.52 M…

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Q: Given values: Substance: antimony (Sb) heat transferred (q): 101.3 J released specific heat capacity…

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Q: The combustion of 1.876 g of propanol (C,H,OH) increases the temperature of a bomb calorimeter from…

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Q: Oxygen gas at 34.5 °C expands from 34.5 L and 45.7 L against a constant pressure of 750 mmHg. What…

A: T = 34.5oC = 273+34.5 = 307.5K number of moles of oxygen (n) = PV/RT = 0.98X34.5/0.082X307.5 =…

Q: A 6.620g sample of C12H24(l) was burned in a bomb caloriemter whose heat capacity had been…

A: Given: Mass of C12H24 is 6.620 g Molar mass is 168.319 g/mol Mass of water is 1250.0 g Initial…

Q: For the reaction: 4HCN) + 502g) → 4CO2(g) + 2H2Og) + 2N2(g) Calculate AH° from the standard…

A: The enthalpy change is given by the following equation : Here the enthalpy change is given by the…

Q: Specific Heat Capacities of common substances: Water (1) = 4.184 Iron (s) =0.45L Aluminum (s) = 0.89…

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Q: Determine ΔH°rxn at 25 °C for the reaction 2 NOCl(g) → N2(g) + O2(g) + Cl2(g) given that the…

A: Given, balanced chemical reaction as follows,2 NOCl(g) → N2(g) + O2(g) + Cl2(g)standard heat of…

Q: 1.00 g Cao (molar mass = 56.077 g/mol) is dropped into a Styrofoam coffee cup containing 185 g H20…

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Q: Calculate the total energy (kJ) required to heat a 17.5 g sample of benzene (C&H6) from 0.00 °C to…

A: Given that: molar mass: 78.11 g/mol cs,solid  = 1.51 J/g*°C cs,liquid  = 1.70 J/g*°C cs,gas  = 1.05…

Q: How much energy is required to heat 100.0 g H2O from a liquid at 20.0°C to a complete gas at 100 °C?…

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Q: Consider a balloon filled with 2115 L of helium at 1.00 atm pressure and 45.5°C. The temperature of…

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Q: From the enthalpies of reaction: H2 (g)   +   F2(g)    ------- >  2 HF (g)          ∆H = -537 kJ…

A: (i) H2 (g)   +   F2(g)  →  2 HF (g)          ∆H = -537 kJ (ii) C(s)  +   2 F2 (g)    →   CF4(g)…

Q: A system contracts from an initial volume of 15.00 L to a final volume of 10.00 L under a constant…

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Q: Using the data below, calculate the enthalpy for the formation of rust, iron(II) oxide. 2Fe(s) +…

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Q: When 7.04 g of potassium sulfate (K2SO4) is dissolved in 114 g of water in a styrofoam calorimeter…

A: The q for water in given calorimeter is calculated by using following relation.

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: Here  Molar mass of CO  12.011g/mol + 15.999g/mol = 28.01g/mol  Given mass of CO = 0.59 g  Now…

Q: tión enthalpies Consider the following unbalanced reaction: ? Al(s) +? Fe203 (s) ===> Al,03 (s) + 2…

A: Hello. Since the reaction contains more than three sub-parts, the first three sub-parts shall be…

Q: Consider the below information at 298 K: 2 NO (g) + O2 (g) 2 NO2 (g) AG° = -72.6 kJ N2 (g) + O2 (g)…

A: The given problem relates to Hess's law, which states that the amount of heat evolved or absorbed in…

Q: What quantity of energy is needed to heat a 1.00-mole sample of H20 from - 34.0°C to 120.0°C? State…

A: Mass of one mole of water = 18 g Amount of energy required to raise the temperature of water from…

Q: Given that H,(g) + F,(g) – 2 HF(g) → 2 HF(g) AHom = -546.6 kJ 2 H,(g) + 0,(8) 2 H,O(1) AHm = -571.6…

A: In-order to find the enthalpy change of the desired reaction, the given reactions has to be written.

Q: 1. Determine the total amount of heat required to decrease the temperature of 25g H,0 from 25 C to…

A: Hello. Since the question contains multiple parts, the first part is solved. In case the solution…

Q: 20.) Calculate for the heat evolved in one mole of glucose (180.56 g/mol) if 3.00 g was ignited in a…

A: Heat evolved at constant volume = C × ΔT × mol-1  C = Heat capacity  ΔT  = change in temperature…

Q: What are the work and change in internal energy when 3 mole of a gas is compressed isothermally and…

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Q: A system expands from a volume of 1.00 L to 2.00 L against a constant external pressure of 1.00 atm.…

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Q: From the enthalpies of reaction2 C(s) + O2(g)----->2 CO(g) ΔH = -221.0 kJ2 C(s) + O2(g) + 4…

A: Given:

Q: How much energy is required to heat 54.0 g H 2O from a liquid at 25.0°C to a complete gas at 100 °C?…

A: There are two stages to calculate the energy required to heat a liquid from 25oC to a complete gas…

Q: 7. The heat evolved from the combustion of 0.94g ethanol raises the temperature of 250 cm water…

A: All the details are explained in handwritten solution.

Q: A0.500 mole sample of CO(g) is combusted in a constant pressure calorimeter to CO2(g). The…

A: To calculate ∆H of reaction , we would use formula : ∆H = -q / n  Where , q = Heat of reaction ,…

Q: calculate the change in internal energy for a system that is giving off 38.8 J of heat and is…

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Q: Consider a balloon filled with 2115 L of helium at 1.00 atm pressure and 45.5°C. The temperature of…

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Q: -1 35. The specific heat capacities at 25°C for three metals with widely differing molar masses are…

A: For 1 kg of substance, 1K rise in temperature requires some specific aggregate of energy which is…

Q: SPECIFIHEAT OF COMMON PURE SUBSTANCES Given the data at the left, which do you think SPECIFIC HEAT…

A: Specific heat capacity It is the amount of heat energy that must be supplied to increase the…

Q: Calculate the enthalpy of the reaction (ΔH) for the following reaction:…

A: The enthalpy of the desired reaction can be determined using Hess’s Law. It states that the enthalpy…

Q: Consider the reaction 2 N20 (g) – 2N2 (g) + 02 (g) . Calculate the work in kJ units at T= 320.0 K…

A: Work done during a chemical reaction = - ∆ng * RT ng = No of moles of gas = (Moles of gaseous…

Q: Given the standard enthalpies of formation for the following substances, determine the reaction…

A: The enthalpy change of a chemical reaction can be calculated by the standard heat of the formation…

Q: Given that H, (g) + F, (g) –→ 2 HF(g) AHixn -546.6 kJ 2 H, (g) + O,(g) 2 H, O(1) AHixn -571.6 kJ…

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Q: A system absorbs 152.7 J of heat and does 320.6 J of work on the surroundings. What are the values…

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Q: 2.0000 g of the unknown compound is burned in a bomb calorimeter. During the combustion, the…

A: Given data mass of compound =2.0000 g molar mass of compound =148.16 gmole Initial temperature :…

Q: Calculate the total energy (kJ) required to heat a 17.5 g sample of benzene (C6H6) from 0 °C to 97.2…

A: Mass of benzene, m = 17.5 g Specific heat capacity of solid benzene, Cs  = 1.51 J/g°C Temperature…

Q: 223 Calculate the change internal 122 energy (AU) for a system that is -23 giving off 45.0 kJ of…

A: The change in internal energy of a system is given below

Q: 4. Use Hess's Law and the following data; CHale) + 202) CO2le) + 2H,0(g) AH = - 802 KJ + CO2(e) 2C0…

A: Hess law is the law which states that the energy change remain same whether the reaction takes place…

Q: When 1.00 g potassium chlorate (KCIO3) is dissolved in 50.0 g water in a Styrofoam calorimeter of…

A: Given data, T1 = 25.00°CT2 = 23.36°CMass = 50 gThe specific heat capacity of water (c) = 4.184 J/K.g…

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: Using the heat capacity formula we can find the heat required to raise the temperature of a…

Q: The molar heat capacity at constant pressure for CO, is 36.61 J mol-1 K-1. How much heat in J is to…

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Q: A Bar Of Aluminum Of Mass 45.5g Is Heated From 293K To 85°C. How Much C Heat Is Absorbed By The…

A: Since you have asked multiple questions, we will solve the first question for you. If you  want any…

Q: 4. Which one of the following statements is false? A) The change in internal energy, AU, for a…

A: A) The change in ∆U is = to the amount or quantity of heat absorbed at constant volume, qv. This…

Q: Consider a balloon filled with 2115 L of helium at 1.00 atm pressure and 45.5°C. The temperature of…

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Q: Calculate the molar heat capacity of C6H14

A: Given :-  mass of hexane = 45.9 g  heat = 1786 J  change in temperature = 17.2 °C To calculate :-…