How much work in kJ is done when an 144.37 L piston is compressed to 56.42 L against an external pressure of 1.81 atm? Do not include units in your answer. Do use proper significant figures.

Q: How much work in kJ is done when an 148.59 L piston is compressed to 57.69 L'against an external…

A: The answer is given as follows

Q: When 762 joules of heat is added to a sample of solid copper (Cu), the temperature rises from 18.2…

A: We will use formula of heat

Q: A mixture of krypton and argon gas is compressed from a volume of 84.0L to a volume of 42.0 L, while…

A: initial volume of mixture of gas =84.0 Lfinal volume of mixture of gas =42.0 Lpressure =99.0 atmwe…

Q: A sample of gas is placed into an enclosed cylinder and fitted with a movable piston. Calculate the…

A: Work done by the gas is given by W = -P × ∆V W = - P × (V2 - V1) W = work done P = external pressure…

Q: 125g of hot Bismuth is placed in 45.0 mL of water (d = 1 g/mL)  at 23.0°C. What was the original…

A: Uisng the concept of conservation of energyHeat lost by hot Bismuth = Heat gain by water…

Q: If a system produces 123.0 kJ of heat and does 45.0 kJ of work on the surroundings, what is the AE…

A:

Q: Enter your answer in the provided box. A gas expands and does P-Vwork on the surroundings equal to…

A:

Q: the laboratory a student finds that it takes 29.3 Joules to increase the temperature of 13.1 grams…

A: Given -> ∆H= 29.3 joule Weight (m) = 13.1 gm T1=20.0°C  T2= 37.9°C

Q: A piece of a mysterious metal has a mass of 455g. It was determined that its heat capacity is 34.3…

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

Q: Enter your answer in the provided box. A system conducts 197 cal of heat to the surroundings while…

A: Recall the following expression from first law of thermodynamics          ∆U=q + w amount of heat…

Q: How much heat is given off to the surroundings when 7 g of aluminum reacts according to the…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: A gas expands from an initial volume of 17.3 L to a final volume of 34.2 L against a pressure of…

A: Since the work done on the gas is given by  w = PextΔV. where w = work  ΔV = change in volume = 34.2…

Q: A chemist carelully experiment shows that 0.84 J of heat are needed. What can the chemist report for…

A: Solution - According to the question - Given - T1 = 14.7 °C T2 = 19.9 °C Heat needed = 0.84 J Mass…

Q: A mixture of krypton and hydrogen gas is expanded from a volume of 61.0 L to a volume of 85.0 L,…

A: Given: Vf = 85.0L Vi = 61.0L Pressure, Pext = 86.0atm

Q: 4. If 5.524 x 10°J of heat is applied to a 702.1 g sample of iron, by how many degrees Celsius will…

A:

Q: How much work is done, in joules, when a piston expands from 11.2 L to 13.9 L against a pressure of…

A: Given:Vinitial=11.52LVfinal=13.9LP=3.0Assuming temperature in the process to be constant:Work…

Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

A: Mass of water = 200ml  Initial temperature = 25oC Specific Heat Capacity =  4.18 J/g.oC Heat = 669J…

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: A sample of gas occupies a volume of 63.2 mL. As it expands, it does 134.0 J of work on its…

A: Given:Volume V1 = 63.2 mL = 0.0632 L.Pressure P = 783 torr = 1.03026 atmWork W = 134.0 J = -1.323…

Q: A piston has an external pressure of 10.0 atmatm. How much work has been done in joules if the…

A: The expression for the calculation of work done is shown below: w = -Pext∆V where; w = work done…

Q: If a system does 73.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A:

Q: • A young man exerted a force of 9,000 N on a stalled car but was unable to move it. How much work…

A: Given  Force = 9000 N Distance = 0 ( no displacement)  Find out work (W)

Q: A piston holding a gas compresses from 4 L to 1 L under an external pressure of 3 atm. What is the…

A: Work is the energy required to move something against a force. To calculate how much work a gas has…

Q: A mixture of nitrogen and argon gas is expanded from a volume of 69.0 L to a volume of 89.0 L, while…

A: Given data, Pressure P = 55.0 atm Initial volume = 69.0 L  Final volume = 89.0 L  work done = ?

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a  338.0mg…

A: The mass of the pure substance in kilogram can be written as 338.0 × 10-6 kg. The specific heat…

Q: A mixture of xenon and neon gas is compressed from a volume of 92.0 L to a volume of 27.0 L, while…

A:

Q: A 2.57 g sample of a substance suspected of being pure gold is warmed to 72.9 °C and submerged into…

A:

Q: A mixture of krypton and oxygen gas is expanded from a volume of 31.0L to a volume of 95.0 L, while…

A: Given :- External pressure Pext = 71.0 atm Initial Volume Vi = 31.0 L Final Volume Vf = 95.0 L

Q: The highly exothermic thermite reaction, in which aluminum reduces iron (III) oxide to elemental…

A:

Q: A system receives 425 J of heat and delivers 425 J of work toits surroundings. What is the change in…

A: According to first law of thermodynamics, ∆U = ∆Q - ∆W

Q: An unknown hot metal at 146.5°C with a mass of 49.43g was mixed with 36.8g of water at an initial…

A: specific heat is defined as the quantity of heat required to raise the temperature of one gram of a…

Q: A system releases 354 kJ of heat to its surroundings. At the same time, 115 kJ of work is done on…

A: given that heat released 354kj ihe heat is released it should be negtive(-354kj) work done on the…

Q: When 745 J of energy in the form of heat is transferred from the environment to a gas, the expansion…

A: According to first law of thermodynamics dU = dQ + dW Where dU is change in internal energy, dQ is…

Q: How much energy (in Joules) is required to raise the temperature of 10.0 g of H2O(l) by 10.0 oC?…

A: Heat required ,Q = mass×specific heat capacity×∆T Q = mc∆T     mass,m = 10 g c = 4.186 J/g-oC ∆T =…

Q: A gas expands and does work on the surroundings equal to 2.17 L atm. At the same time, it releases…

A: First law of thermodynamics It states that the internal energy of a system is equal to the heat…

Q: A reaction occurs between hydrogen gas and chlorine gas. This causes their container to expand from…

A: Given that, The amount of work done in the reaction, W = 14 J Let the container expand from V1 to…

Q: An unknown hot metal at 122.41°C with a mass of 53.37g was mixed with 28.15g of water at an initial…

A: We have to calculate the  specific heat of the unknown metal.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 839.0 g sample…

A: The mass of the substance is = 839.0 g The raise in the temperature of the substance is = 8.9oC -…

Q: Enter your answer in the provided box. A sheet of gold weighing 10.0 g and at a temperature of…

A:

Q: A mixture of krypton and neon gas is expanded from a volume of 18.0 L to a volume of 97.0 L, while…

A: Thermodynamic is branch of chemistry in which we deal with amount of heat evolved or absorbed by the…

Q: The ΔE of a system that absorbs 184 J of heat from the surroundings and has 42 J of work done on the…

A:

Q: A typical bike tire has a volume of 150 in³. If a bicycle pump can hold 567 cm3 of air, and you…

A: We need to find Work-done for each pump,then we need to have how many pump needed to fill the…

Q: When 2 mol of potassium chlorate crystals decompose to potassium chloride crystals and oxygen gas at…

A: A thermochemical equation for a given reaction can be defined as the balanced stoichiometric…

Q: A gas expands in volume from 34.2 mL to 81.6 mL at constant temperature. Calculate the work done (in…

A: Given data unit conversion

Q: 5. A system compresses when 457 J of work was done on it at the same time it decreases it energy to…

A: Given,  A system 457 J of work done when it compresses, at the same time it decreases energy to 234…

Q: Calculate the pressure-volume work done when a system containing a gas expands from 56 liters to 114…

A: Initial Volume of gas = 56 L Final volume of gas =  114 L Constant external pressure = 3.017 atm

Q: The internal energy of a system increased by 982 J when it absorbed 492 J of heat. Was work done by…

A: When a system absorbs energy it means work done on the system, We know that, ∆U=982 Jq=492 J…

Q: A mixture of krypton and hydrogen gas is expanded from a volume of 28.0 L to a volume of 39.0 L,…

A: