5.2 b Calculate the magnitude of q for a system that does 7.05 × 105 kJ of work on its surroundings and for which the change in total internal energy is −9.55 × 103 kJ. Indicate whether heat is absorbed or released by the system.

Q: A small piece of calcium carbonate was placed in a constant-volume calorimeter (Ccal=0.488  kJ/°C),…

A: Given data :  1. Ccal=0.488 kJ/°C 2. Change in temperature = 3.5 oC

Q: 8. Calculate the E for a system undergoing an exothermic process in which 10.3 kJ of heat flows and…

A:

Q: Which of the following conditions for q and w represent a system gaining heat from the surroundings…

A: Endothermic reaction is a reaction where heat is absorbed by the system from the surroundings.

Q: A gas expands and does 256 J of work on its surroundings. At the same time it absorbs 220 J of heat…

A:

Q: The value of ∆E for a system that gains 115kJ of work from the surroundings and loses 79 kJ of heat…

A: The value of ∆E for a system that gains 115kJ of work from the surroundings and loses 79 kJ of heat…

Q: A gas is confined to a cylinder under constant atmosphericpressure, as illustrated in Figure 5.4.…

A: Given: Heat absorbed by the system = 824 J Work done on the system       = 0.65 kJ

Q: 3.A 1.620 g sample of naphthalene, C10H$(s), is completely burned in a bomb calorimeter assembly and…

A: Given:  Mass of C10H8(s) = 1.620 g ∆T = 8.44°C Released heat = -5156 kJ/mol Standard data:  The…

Q: When 320 mg of naphthalene, C10H8(s), was burned in a bomb calorimeter, the temperature rose by 3.05…

A: An apparatus used to determine the heat associated with chemical or physical reactions is called a…

Q: Assume that a particular reaction evolves 244kJ of heat and that 35kJ of PV work is gained by the…

A: Given that: Heat evolved (q) = -244 kJ (negative sign indicate that heat is released) P∆V = -35 kJ…

Q: Consider two 50.0 mL volumes of water, one at 20.0 °C and the other at 100.0 °C. What is the heat…

A: Given, Volume of water in two separate Container = 50 mL Temperature of one of the water = 20◦c…

Q: Given delta U= q + w, if 13 kJ of heat was absorbed by a system and 9kJ of work was done on the…

A: Internal energy is the total energy of a system that consists of kinetic and potential energies. The…

Q: 4. a) What is the enthalpy change for a system undergoing a volume change of 500.0 mL to 25.0mL…

A: Given that -  Volume change of a system, ∆V = Vfinal - Vinitial =  25 - 500 = -475 Pressure ,P = 435…

Q: A balloon is inflated with air from an initial volume of 1.44E-1 L to 2.16E0 L against an external…

A:

Q: For a particular reaction, the system absorbs 6kJ of heat and does 1.5kJ of work on its…

A: Given: The heat absorbed by the system, (Q) = + 6 KJ. The work done, (W) = - 1.5 KJ (Negative as…

Q: If a system absorbs 39 kJ of energy and does 15 kJ of work on the surroundings, calculate the change…

A:

Q: Phenol undergoes combustion in oxygen to produce carbon dioxide gas and liquid water. The standard…

A: The given data contains, ∆H°combustion=-3054 kJ/mol ∆H°(CO2)=-393.5 kJ/mol ∆H°(H2O)=-285.8 kJ/mol

Q: When 10.000 gm of oxalic acid, H2C2O4, are burned in a bomb calorimeter that has a total heat…

A: The amount of heat released in the combustion of oxalic acid is absorbed by the bomb calorimeter to…

Q: When 23.6g of calcium chloride, Was dissolved in water in a constant pressure calorimeter, the…

A: For heat capacity ,heat and temperature ,there is a relation for all: q=c×△TWhere:q= Heat…

Q: 1 mol of butane burns at constant pressure to produce carbon dioxide and water. The reaction…

A: Given , at constant pressure , Heat produced (q) = 2870kJ Work done (W) = 8 kJ  Find the value of…

Q: If a system has 325 keal of work done to it, and releases S5.00 x 10 kJ of heat into its…

A:

Q: 2. Calculate the pV work done (in Joules) when a gas expands from 3 L to 8 L against a constant…

A: Given : Initial volume of gas = 3 L  Final volume of gas = 8 L And constant external pressure = 5…

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: What is the change in internal energy (in J) of a system thatreleases 675 J of thermal energy to its…

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: a system recieves 425J of heat and delivers 425J of work toits surroundings. what is the change in…

A: Given Heat ( q ) = +425 J ( as heat is received to system ) Work ( w) = +425 J ( as work done by…

Q: ) Write an equation for the combustion of 1 mol of pentane gas, C5H12(g), to form carbon dioxide gas…

A:

Q: Explain the difference between the change in internal energy and the change in enthalpy of a…

A: Change in internal energy (∆U): Internal energy is the sum of Potential energy and the work done of…

Q: What is the change in the internal energy of the system if 69 kJ of heat energy is evolved by the…

A: From first law of thermodynamics, Heat added to system = change in internal energy + work done by…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 412.0 mg sample…

A: The molar heat capacity of a compound is defined as the amount of heat required to raise the…

Q: 1. a. (i) The work done to compress a gas is 85.0 J. As a result, 21.0 J of heat is given off to the…

A: Given that w = 85.0 j (it is positive because work done on gass)  q = - 21.0 j (it is negative…

Q: A 0.05mol sample of methane, CH4, is combusted under a calorimeter containing 250mL of H20. If the…

A:

Q: If 2.508 mol of a material produces 733.5 kJ of heat in a reaction, determine the molar enthalpy for…

A: Moles of material = 2.508 moles Heat produced in the reaction means this is exothermic reaction.

Q: If the temperature of a system of one mole of an ideal gas is changed from T1°C to T2-2T1 °C is…

A:

Q: A system does 546 kJ of work and loses 271 kJ of heat to the surroundings. What is the change in…

A: Work (w) = -546 KJ (because work is done on the surrounding, so this is negative) Heat (q) = -271 KJ…

Q: In an isolated system 1000 J of heat is added to an ideal monatomic gas, while the gas performs 500…

A: From data Q= +1000J (positive as it is positive in case of heat is added to system as per chemistry…

Q: Suppose a reaction is run in a water-based calorimeter of negligible heat capacity and that qwater…

A:

Q: Rapid walking through a distance of 2.2 km for 30 minutes per day requires 41 J while swimming for…

A: Since walking consume 41 J per day(for 30 minutes). Energy consumed in one week = 7×41= 287J. Energy…

Q: Suppose a reaction is run in a water-based calorimeter of negligible heat capacity and that qrxn =…

A:

Q: How much heat is released by a system when 45 J of work is done on it to decrease its energy to 23…

A: Since you have posted multiple questions, we will solve first one for you. To get the remaining…

Q: by enzol ure of a bomb calorimeter by 6.94 °C. Calculate the heat capacity of the calorim

A: □H = 3.23×103 kJ/mol □H = q/n q = □H × n = 3.23×103 × 0.500/122 = 13.2 kJ

Q: (3) It takes 330 J of energy to raise the temperature of 24.6 g of benzene from 21.0°C to 28.7° C at…

A: Given: Total energy = 330 J Mass of benzene = 24.6 g Initial temperature = 21 °C Final temperature…

Q: A gas is allowed to expand, at constant temperature, from a volume of 1.0 L to 10.1 L against an…

A:

Q: Kapia walking through a distance of 2.2 km for 30 minutes per day requires 41 J while swimming for…

A: Given that standard enthalpy of combustion glucose is -2806 kJ/mol Molar mass of glucose is 180…

Q: Calculate the magnitude of q for a system that does 508000 kJ of work on its surroundings and for…

A: Given information,

Q: A system initially at 1.50L changes its volume under an external pressure of 0.988atm while…

A: Given data:

Q: Consider the combustion of liquid C₅H₈ in oxygen gas to produce carbon dioxide gas and water vapor.…

A: Specific heat capacity C is defined as the amount of heat that must be supplied in order to raise…

Q: The standard enthalpies of combustion of formaldehyde, H2C=O(g), and formic acid, HCOOH(1), are -563…

A:

Q: A change in a system occurs such that 31.1 J of work is done by the surroundings and 22.4 J of heat…

A: Internal energy is the stored energy of the system. From the first law of thermodynamics it is clear…

Q: Kapia walkin9 through a distance of 2.2 km for 30 minutes per day requires 41 J while swimming for…

A: Energy required for rapid walking 2.2 km distance for 30 minutes in a day = 41 J      Energy…

Q: 1. Calculate w for a system that absorbs 260 kJ of heat and for which AE = 157 kJ. Is the work done…

A:

Q: 8. Liquid ethanol, C,H;OH(1), has been proposed as an alternative fuel. Calculate the standard…

A: