The energy absorbed by a certain system is -130 kj . If the system does 90kj of work on the surroundings how much heat is lost or gained by the system?

Q: The following thermochemical equation is for the reaction of HCl(g) with NH3 (9) to form NH4Cl(s)…

A: This is exothermic reaction as ∆H of the reaction is negative.  1 mole ammonia react with 1 mole…

Q: Suppose that the molar enthalpy of a reaction is -73.45 kJ/mol and 4.222 moles are reacted. How many…

A:

Q: 1.30 kg of an unknown substance was heated up using 7,198 cal energy from 46.8 degree celsius to…

A: Given: Mass of the substance, m=1.30 kg=1.30 x 1000=1300 g Heat provided,q =7,198 cal =7198 x 4.184…

Q: What is the change in internal energy

A:

Q: An automobile engine provides 623 Joules of work to push the pistons. In this process the internal…

A: Given: Work done = 623 Joules Change in internal energy = -2731 Joules

Q: An automobile engine provides 561 Joules of work to push the pistons. In this process the internal…

A: To solve this question, use the formula which contains q, ∆U, and w in it. Give the signs to the…

Q: f a system does 19.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A: We can find the change in the internal energy of the system(∆U) by using the equation for the 1st…

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: 4Al(s) + 3O2 (g) --> 2 Al2O3 (s) Δ H = -3351 kJ     How much heat will be released when 85 g of Al…

A: Given thermochemical reaction equation is 4Al(s) + 3O2 (g) --> 2 Al2O3 (s) Δ H = -3351 kJ…

Q: For a particular process, the system releases 17 kJ of heat and has 21 kJ of work performed on it.…

A: Heat released by a system has a negative sign and work done on the system has a positive sign.

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

A: ✓The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes…

Q: An automobile engine provides 621 Joules of work to push the pistons. In this process the internal…

A: According to the first law of thermodynamics, the following expression is obtained: ∆U=q+w…

Q: What is the internal energy of a system that has 45.2 J of work done to it and releases 74.6 J of…

A: Given, work done on system ,W = 45.2 J Heat released from system to sorroundings, q  = 74.6 J

Q: In a calorimeter, a 90.0 g piece of metal at 92.4 *C is submerged in 100.0 g of water, that is…

A: In a calorimeter, a 90.0 g piece of metal at 92.4 °C is submerged in 100.0 g of water that is…

Q: Calculate the increase in the temperature of Aluminum when 12.76 kcals of heat are supplied to a 2.0…

A:

Q: fa system absorbs 155.0 kJ of heat from its surroundings and the system does 65.0 kJ of work on its…

A: In this question, we want to determine the value of Change in internal energy of the system.  How we…

Q: a system does 72.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change in…

A:

Q: A chemist measures the energy change AH during the following reaction: Cl₂(g)+H₂(g) → 2 HCl(g) ΔΗ=…

A:

Q: 155 Joules of heat is added to a system that performs 63 Joules of work.  Determine the internal…

A: Heat supplied to the system=155Joules Work done =63 Joule we have to find the internal energy change…

Q: heat for the combustion of sucrose (table sugar, C12H22O11) is -5,647 kJ for

A: Number of moles = mass/ molar mass  Number of moles of O2 = mass of O2/molar mass of O2

Q: An automobile engine generates 2264 Joules of heat that must be carried away by the cooling system.…

A: According to the first law of thermodynamics, U = Q - W where U represents the change in internal…

Q: Suppose that the molar enthalpy of a reaction is -40.95 kJ/mol and 3.144 moles are reacted. How many…

A: The energy released or absorbed per mole of solute dissolved in a solvent is known as molar heat of…

Q: What is the change in energy (in J) for a system that lost 344 J of heat to the surroundings, and…

A: Assume that work (w) is done on the system, so w will be positive.Given:Heat lost, Q  = - 344 JWork…

Q: A gas expands and does work on the surroundings equal to 0.21 L atm. At the same time, it absorbs…

A: The question is based on the concept of chemical thermodynamics. We have  to calculate internal…

Q: An automobile engine provides 519 Joules of work to push the pistons.In this process the internal…

A: The objective of the question is to calculate the amount of heat (q) that must be carried away by…

Q: If a system absorbs 155 kJ of heat from its surroundings and the system does 45 kJ of work on its…

A: Given, Amount of heat absorbs by the system q = 155 kJ work done by the system W = 45 kJ We are…

Q: What is the AE of a system if 184 kJ of work is done on the system and it loses 267 kJ of heat?

A: We use the first law of thermodynamic for calculating the change in internal energy. This low state…

Q: An automobile engine provides 565 Joules of work to push the pistons. In this process the internal…

A: In this question, we want to determine the amount of heat that must be carried away by the cooling…

Q: The gas in a piston (defined as the system) warms and absorbs 655 J of heat. The expansion performs…

A: The total heat of a system remains conserved. The system takes the heat and does the work, this…

Q: 200 grams

A: A) moles of NH3 = 200g / 17gmol-1 = 11.765mol  B) moles of O2 = 450g / 32gmol-1 = 14.063mol

Q: in an inflated balloon (system) is cooled and loses 823. J of heat. the surroundings also compress…

A:

Q: A chemist measures the energy change AH during the following reaction: 2 NO₂(g) → N₂O4(9) - Use the…

A:

Q: A gas sample does 214 J of work upon expanding and the cools, losing 34 J of heat. What is the total…

A: The first law of thermodynamics is given asΔU=Q−W, Δ U = Q − W , whereΔU is the change in internal…

Q: If a process gives off 58 calories of heat but the internal energy of the system remains unchanged,…

A: Welcome to bartleby !  Introduction :  We have to tell kind of work and how much is involved .

Q: ystem does 675 kJ of energy onto its surroundings while releasing 1543 J of heat. What is the change…

A: To find the change in energy of the system, you need to consider both the work done by the system…

Q: While 60 J work is done on the gas, the internal energy increased to 1.8 kJ. What was the value of…

A: According to the first law of thermodynamics, energy can neither be created nor it can be destroyed…

Q: If a system does 84.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A: From first Law of Thermodynamics , the total change in internal energy of the system can be…

Q: The temperature of an 6.95 g sample of an unknown metal increases from 22.0°C to 31.7°C upon the…

A: The mass of the sample is = 6.95 g Increase in the temperature is = 22.0oC to 31.7oC The required…

Q: For which of the following equations would the value of Kc = Kp?

A: Relationship between Kp and Kc :-  Kp = Kc(RT)∆ng

Q: 2. A gas gains 15.0 kJ of heat and then performs 5.0 kJ of work. Calculate the AE of the gas.

A: FIRST LAW OF THERMODYNAMICS: Energy can neither be created nor destroyed , energy can only be…

Q: In a calorimeter, a 75.0 g piece of metal at 98.6 *C is submerged in 100.0 g of water, that is…

A: The heat transferred during the reaction can be determined from the given equation. The temperature…