1 kg of Air was heated at constant temperature from 0.03 m3 and 101 kPa to 0.01 m3. By how much did the internal energy change? Assume (cv = 0.7177 kJ/kg.K)

Q: E4c. Please calculate AHOn (the standard enthalpy of reaction) of reaction (5). CH&Cg)+202(g)…

A: The standard enthalpy formation of ethane, ΔH is calculated as,

Q: Given the following enthalpies of combustion:             (a) 2H2(g)  +  O2(g)  -->  2H2O(g);…

A: The reactions given are, a) 2 H2(g)  +  O2(g)  -->  2 H2O(g);                          ΔH1 =…

Q: A 32.3 g iron rod, initially at 21.7 °C, is submerged into an unknown mass of water at 62.6 °C, in…

A: The question is based on the concept of chemical thermodynamics. we have to calculate initial mass…

Q: The value of AE for a system that performs 151 k) of work on its surroundings and loses 79 kJ of…

A:

Q: Liquid pentane is burned with dry air and products are measured on a dry basis: CO2 10.1%, CO 0.2%,…

A:

Q: A gas confined in a cylinder by a piston. It is taken from state A to state B along the path ACB as…

A: Given:  qAC = -25 J  WAC = +50 J  qCB = +75 J  WCB = 0 J (because CB is isochoric process)  qBA = 0…

Q: find the dH when 56g of AgNO3 (M = 169.9 g/mol) reacts. If the heat involved (derived from answer a)…

A: Given that ΔH of AgNO3 is -124.4 kJ/mol, at standard conditions, the ΔH is to be determined when 56g…

Q: system receives 75.0 Joules of electrical work, delivers 274.0 joules of expansion work and absorbs…

A: Change in internal energy is equal to the sum of work done during expansion, electrical work and the…

Q: Q3: Air undergoes a three-process cycle. if the processes are :1→ 2: constant- pressure expansion…

A: We have to calculate the work done for all the three cycles:

Q: What is the standard enthalpy of reaction per mole of KOH when 50.00 cm3 of 1.0 moldm-3 of Nitric…

A: Standard Enthalpy of reaction would be calculated using the values of heat and moles of KOH .

Q: A model steam engine of 1.00 kg mass pulls eight cars of 1.00 kg mass each. The cars start from rest…

A: According to the First Law of Thermodynamics, the change in internal energy is given as,…

Q: Three moles of nitrogen at 300°C is contained in a piston/cylinder arrangement. How much heat must…

A: The expression of heat  is shown below: where; n = no. of moles Cp = heat capacity at constant…

Q: 9.6. Formaldehyde may be produced in the reaction between methanol and oxygen: 2CH3OH(1) + O2(g) →…

A: The Hess’s law states that enthalpy of a net reaction formed by the addition of two or more…

Q: Q16:- A classic assembly consists of s of energy segments, the energy of each segment is determined…

A: Answer is explained below. Given that Energy levels,Es=0.1s (s=0,1,2,3,4,5 etc)Multiplicity,…

Q: The enthalpy change for the oxidation of indene, C, Hs, is measured by calorimetry. C,Hs (4) + 11…

A:

Q: The internal energy, E, of a system is the sum of the kinetic and potential energy of all of…

A: Given data, Heat (Q)=9904JWork done=5.38kCal=5380Cal1 cal=4.184J5380Cal=4.18×5380J=22488.4J

Q: itroglycerin (C3H5N3O9), a liquid at room temperature (25 oC) and atmospheric pressure (1.01325 x…

A: Decomposition reaction  is reaction in which compound breaks down into two or more simpler substance…

Q: 4. In a neutralization reaction in a well-insulated calorimeter, 112.9 g of 1.2915 M NAOH were added…

A: Given: mass of NaOH = 112.9 g Concentration of NaOH = 1.2915 M mass of HCl = 129.1 g Concentration…

Q: on biac 1.5. If the temperature of a system of one mole of an ideal gas is changed from T1°C to T2…

A: Please find the below attachments.

Q: Using the standard enthalpies from the table below, calculate the AH for the following reaction…

A: The given balanced reaction, HCl(aq)+AgCN(s)-->HCN(aq)+AgCl

Q: 2C4H10 + 13O2  -> 8 CO2 + 10 H2O   Heat= -5314kJ, heat of combustion per gram?

A: ·Reaction equation : 2C4H10 + 13O2  →                 8CO2 + 10H2O·Enthalpy of reaction, ∆H°rxn =…

Q: HERMODYNAMICS: The combustion of 1.00 mol of glucose (C6H1206) liberates 2820 kJ of heat. If 1.33 g…

A:

Q: Constants I Periodic Table At 1000. K, AHŞ = -123.77 kJ - mol- for the reaction N2(g) + 3H2(g) →…

A:

Q: HCl(aq) + NH3(aq) → NH¾CI(aq) The reaction of 50.0 mL of 1.00 M HCI with 50.0 mL of 1.00 M NH3…

A: Enthalpy change in a reaction is the difference between the enthalpy of product and the enthalpy of…

Q: If a 62.1 gram piece of copper is heated to 100.0oC and then put into a vessel containing 250.0 mL…

A: The moles of copper and water can be calculated as

Q: From the following enthalpies of reacion, calculate the AH for the reaction in kJ of C2H4(g) with…

A:

Q: Calculate ΔHrxn

A:

Q: HCI(aq) + Ba(OH)2(aq) --> Bacl2(aq) + 2 H20(1) AH= -118 kJ Calculate the heat when 114.0mL of 0.50OM…

A: a)  Moles of HCl can be calculated as., 0.500 M HCl = 0.500 moles/ 1 L we have, 114 mL, which is…

Q: 6. Given that the AH for CaO, H3PO4, Ca3(PO4)2 and H2O, are, respectively, -635, -1267, -4126, and –…

A: Answer (a): ∆H of the reaction is -545 KJ. Here negative sign indicate the release of energy or…

Q: A 44.0g sample of an unknown metal at 99.0 Celsuis was placed in a constant-pressure calorimeter of…

A: Loss of heat by the metal = Gain of heat by the water.

Q: A group of Chemistry students was asked to determine the heat of reaction for the neutralization of…

A: Given: Concentration of NaOH = 0.05 M Volume of NaOH = 20.00 mL Concentration of HCl = 0.100 M…

Q: Nitroglycerin (C3H5N3O9), a liquid at room temperature (25 oC) and atmospheric pressure (1.01325 x…

A:

Q: kJ. The value of AE for a system that performs 139 kJ of work on its surroundings and gains 54 kJ of…

A: according to first law of thermodynamics      ∆E = q+ W

Q: Assume that a particular reaction evolves 232 kJkJ of heat and that 27 kJkJ of PVPV work is gained…

A: FIRST LAW OF THERMODYNAMICS:

Q: A chemical reaction involving gases takes place in a vessel fitted with a movable piston. The…

A:

Q: Simple Calorimetry. A piece of solid aluminum at 15.0°C is immersed in 12.3 g of nitrogen gas which…

A: Heat lost by hotter N2 gas is equal to heat absorbed by the cooler solid aluminium.

Q: The water in the calorimeter was found to be 20.0oC.  The line gave a value of 33.6oC at 120 s (the…

A: Calorimetry is defined as the act of measuring changes in the state variable of a body for the…

Q: What is the standard enthalpy of reaction per mole of either HCl or NaOH when 50.00 cm3 of 0.1…

A:

Q: If one kg of this gas is heated at constant pressure from 25°C to 200°C. The initial volume is 2 m3.…

A:

Q: What is the standard enthalpy of reaction per mole of either HCl or NaOH when 50.00 cm3 of 0.1…

A:

Q: A cylinder of compressed neon gas is opened to the atmosphere in a storage closed where P closet =…

A: Change in volume = (1 - 0.7) = 0.3 m3 Work done = - Pressure X Change in volume = - 1010066 x 0.3 =…

Q: 2. A system consists of 1 mole of ideal gas is taken through the cycle shown below from (123). For…

A:

Q: The following reaction: 2NaOH(aq) + H2SO4(aq) → Na2SO4(aq) + 2H2O(l)was studied in a coffee cup…

A: Heat capacity can be defined as the amount of heat energy required to raise or lower the temperature…

Q: In a typical experiment performed to measure the electrical equivalent of heat, the following data…

A: Given, Current drawn is = 2.00 A Applied voltage is = 3.00 V Mass of water is = 122 g Mass of…

Q: Calculate the standard enthalpies of combustion at 25ᵒC  (a) C4H8(g) + H2(g) ---> C4H10(g)…

A:

Q: A quantitity of 100mL of 0.500 MHCl was mixed with 50 mL of 0.500M NaOH in a constant pressure…

A: Given: Vol of HCl, = 100mL  =0.100LConcentration of HCl = 0.500MVol of NaOH = 50mL…

Q: How do you do E4b?

A: Given reactions are :