6. How much work is needed in a system to expand from 25 to 50 L against a pressure of 7 atm? Is work done on the system or on the surroundings?

Q: A piece of metal with mass 20.00 g at room temperature [25.0oC] was heated up to 90.0oC. This metal…

A: a) The amount of heat water gained is given by Q as Q = mCΔT where m = mass of water = density X…

Q: A mixture of gases undergoes a chemical reaction inside of a container with a movable piston. The…

A: Here the heat is releases means it will be having a negative sign as q= -243KJ And here work is done…

Q: The AU of a system that absorbs 12.4 J of heat and does 4.2 J of work on the surroundings is J. O…

A: Detail mathematical calculation is shown below to find out the change in internal energy

Q: When a cold 100 g iron bar was placed into a water bath, the temperature of the bath decreased by…

A: Here we are required to heat was transferred to iron bar.

Q: 7. A 10.0 g sample of a metal is heated to 75.0 °C and then added to 20.0 g of water at 22.7 °C in…

A:

Q: Substance "C" is identified to have a specific heat capacity of 0.452 J/(g.°C). Which substances…

A: Answer: Specific heat capacity of the substance is defined as the amount of energy added into the…

Q: 7. For the following scenarios what is the metal? a. A piece of metal weighing 59.047 g was heated…

A: Given,a, mass of metal = 59.047 gInitial temperature of metal = 100.0 oCvolume of water = 100.0…

Q: A gas compresses from an initial volume of 12.7 L to a final volume of 1.53 L against a constant…

A:

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: 6. A 40.00 g sample of water at 22.00°C is put in a calorimeter. After 60.00 g of water at 65.00°C…

A: (6) Given - Mass of water at 22.00°C = 40.00 g  Mass of water at 65.00°C = 60.00 g  Final…

Q: In order to bake a loaf of bread in an oven, 4,800 kJ of heat are released by the oven. If the bread…

A: The question is asking for the amount of energy absorbed by the bread when it is baked in an oven.…

Q: (c) The heat released by the reaction (d) If the acid-base neutralization produces 0.43 mole of…

A:

Q: 6. A 128g piece of Iridium at 95 C is dropped into a 45.2g of water at 17.3 C. The final temp of the…

A:

Q: 11. A piece of metal weighing 3.20 grams is heated to 100. °C. It is dropped into 50.0 grams of…

A: 11) Mass of the piece of metal = 3.20 grams Temperature=  100o CMass of water in calorimeter = 50…

Q: 2. A sample of lithium goes through a temperature change of +56.36 K while absorbing 17776 joules of…

A: Amount of heat,Q required to increase the temperature of a substance of mass ,m and specific heat…

Q: 13. In an experiment, 30.0 g of metal was heated to 98.0°C and then quickly transferred to 50.0 g of…

A:

Q: A 2.62E1 g sample of aluminum at 1.008E2 °C is added to 1.002E2 g of water at 2.22E1 °C in a…

A: For a chemical reaction or physical process to occur a certain amount of energy should be furnished…

Q: The specific heat capacity of a pure substance can be found by dividing the heat needed to change…

A:

Q: . A piece of an iron metal of unknown mass is heated to 325.9 o C and then placed in a styrofoam…

A: Given, Initial temperature of iron = 325.9 °C Volume of water = 225.2 mL Initial temperature of…

Q: A change in a system occurs such that 76.2 J of heat flows in to the system and 66.5 J of work is…

A: Introduction: From the 1st law thermodynamics,  the change in internal energy, ∆U = q + w (q =…

Q: As a system increases in volume, it absorbs 50.33 of energy in the form of heat from the…

A: The internal energy of the system can be modified by doing work on them or by adding heat to the…

Q: A silver block, initially at 58.5 °C, is submerged into 100.0 g of water at 24.8 °C, in an insulated…

A:

Q: As a system increases in volume, it absorbs 52.0 J of energy in the form of heat from the…

A: Work done (w) can be calculated as follows, 1 L atm = 101.3 J

Q: 4. An unknown substance requires 567 J of heat to increase its temperature from 0 to 15 °C. The…

A:

Q: 4. Calculate the amount of heat (in kJ) required to raise the temperature of a 45.0 g sample of…

A: Heat required to raise the temperature of 1g of substance through 1°C is known as specific heat…

Q: In a calorimetry experiment similar to the one performed today, a student used 50.0 mL of 1.0 M NaOH…

A: Since you have posted multiple questions, we are entitled to answer the first only. 5) Given:…

Q: A gas absorbs 15.2 J of heat and then performs 15.2 J of work. The change in internal energy of the…

A: Given: Heat absorbed= 15.2 J             Work done= 15.2 J To find : change in internal energy…

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

A: Given that : The internal pressure of the gas = 24.0 atm The initial volume of the container = 1.00…

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.