The value of ΔE for a system that performs 213 kJ of work on its surroundings and loses 79 kJ of heat is ___ kJ. a. -134 b. +134 c. +292 d. -292

Q: A change in a system occurs such that 92.1 J of heat flows in to the system and 31.8 J of work is…

A: From the first law of thermodynamics, ∆U = Q - W where, ∆U = change in internal energy  Q = heat…

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: What is the change in internal energy for a system if the system absorbs 537 kJ of heat and does…

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Q: change in a system occurs such that 15.1 J of work is done by the surroundings and 40.1 J of heat…

A: Given; The work done on the system, (W) = 15.1 J. The heat or enthalpy of the system, (H) = 40.1 J.…

Q: A system undergoes a process consisting of the following two steps:Step 1: The system absorbs 72 J…

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Q: A 2.5-mol monoatomic gas (s=8.2 J/mol-K) recorded a temperature drop of 19 Kelvin while performing…

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Q: Calculate the work ( in kJ ) done during a reaction in which the volume expands from 12.0 L to 14.5…

A: Work done :-       Energy that is transmitted from one system to another in such a way that…

Q: . What is the change in internal energy of the system (AU) if 82 kJ of heat energy is absorbed by…

A: According to the first law of thermodynamics, the internal energy is equal to the sum of heat…

Q: 1. A gas expands from 250 to 1000. mL at constant temperature. Calculate the worl done in joules…

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Q: A gas expands and does work on the surroundings equal to 279 J. At the same time, it absorbs 216 J…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: , When 25.0 mL of 1.00M HNO3at 25.0oC is added to 25.0 mL of 1.00M KOH at 25.0oC in a coffee cup…

A: The reaction of acid and base results in the formation of salt and water and heat is evolved. This…

Q: A 20 g sample of dry ice (CO₂(s)) is placed in a glass flask and a stopper is tightly placed in the…

A: Given :-  Mass of CO2 = 20 g  Heat energy is transferd into the flask = q = + 350 J   change in…

Q: Which statement is true of the internal energy of the system and its surroundings following a…

A: Internal energy of a system is the summation of potential and kinetic energy of that system. Or the…

Q: One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is…

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Q: A gas is confined to a cylinder under constant atmospheric pressure. When 0.49 kJ of heat is added…

A: According to the first law of thermodynamics, the internal energy change of the system is equal to…

Q: Suppose a system returns to its original internal energy after the following changes. In step 1, 25…

A: It is given that in first step system releases 37 J of energy which means q = -37 and the work is…

Q: The temperature of a constant amount of an ideal gas in a closed system at a fixed pressure, p₁, was…

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

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 22.0 atm. Calculate…

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

Q: What is the change in the energy of surroundings when the system absorbs 17.5 kJ of energy and…

A: It is given that system absorbs 17.5 kJ of energy and the work done is 5×103 J. It is known that 1 J…

Q: Calculate the work, in joules, done by a gas as it expands at constant temperature from a volume of…

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Q: Calculate the work, in joules, done by a gas as it expands at constant temperature from a volume of…

A: During the expansion of a gas at constant temperature the work done by the system is given by: w =…

Q: A fuel-air mixture is placed in a cylinder fitted with a piston. The original volume of the mixture…

A: Formula : Work done , W = -935 J W =-Pext( Vf - Vi ) -935 = - 0.836 ( Vf - 0.310 ) x 101.3  Vf =…

Q: 5) How much work does a gas do when it expands against a constant pressure of 0.500 atm from a…

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Q: A system does 435 kJ of work(w) and loses 312 kJ of heat(q) to the surroundings. What is the change…

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Q: 14. Which of the following statements are true about a system that absorbs 300J of heat from the…

A: Heat (q) is positive if heat is added to the system, and negative if heat is removed.Work (W) is…

Q: During a normal breath, our lungs expand about 0.50 L against an external pressure of 1.0 atm. How…

A: Given; The initial volume, (V1)=0 L. The final volume, (V2)=0.50 L. The external pressure, (P1)=1.0…

Q: O Energy is evolved. b. Determine whether work was done on the system or the system does work on the…

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Q: The specific heat capacity of silver is 0.24 J/°C.g. a. Calculate the energy required to raise the…

A: 1) Since the energy of heating process is given by Q = m C  ΔT where m = mass = 143 gC = specific…

Q: Calculate the work, in joules, done by a gas as it expands at constant temperature from a volume of…

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Q: 17. Calculate change in internal energy if the system transfers 182 kJ of heat to the surrounding…

A: q = 182 KJ  W = 124 KJ  ∆U = ?

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 24.0 atm. Calculate…

A: Step 1: first we have to find work done by the gas against external force.- pexternal(v2-v1). Step…

Q: Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 18.0 atm. Calculate…

A: Work done by gas against a constant external pressure is given by  W = -PΔV where W = work done by…

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: One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is…

A: T = 78°CP1 = 5.20 atmP2 = 2.53 atmP3 = 1.00 atmWhat is the total work (in joules) in going to the…

Q: Calculate a. q when a system does 54J of work and its energy decreases by 72 J b. ∆E for a gas that…

A: Interpretation-  To determine the q when a system does 54J of work and its energy decreases by 72 J…

Q: 2. A certain gas expands in volume from 2.0 L to 6.0 L at constant temperature. Calculate the work…

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Q: A system is compressed from 25.0 Lto 20.56 L at a constant pressure of 1.0 atm. What is the amount…

A: Pressure=1atm V1=25Ll V2=20.56L  Workdone=?

Q: The combustion of 2.495 g of propanol (C3H7OH) increases the temperature of a bomb calorimeter from…

A: Mass of propanol=2.495 g Initial temperature, T1=298 K Final temperature, T2=302.76 K Heat capacity,…