balloon is filled with 35.3 moles helium at a volume of 93 L at 0.1 C and 1.4 atm pressure. At constant atmospheric pressure, the temperature is increased to 26.3 C causing the balloon to expand to 131.1 L. Calculate dE of the helium in the balloon. Molar heat capacity is of helium is 20.8 J/C mol.   1 L*atm = 101.3 J

Q: A 75.0-g sample of a metal is placed in boiling water until its temperatureis 100.0°C. A calorimeter…

A:

Q: All of the heat from the combustion of 30.69 mL of C,H, is transferred to 7.513 L of water at…

A: 2C6H6(l) + 15O2(g) → 12CO2(g) + 6H2O(l) ΔHo = −6535 kJ Given, Volume of C6H6 = 30.69ml  Density of…

Q: Evaporating endothermic Sweat Cools the body because evaporation and absorbs 2.44 KJ per gram of…

A: Evaporation: The process in which liquid convert into vapor or gaseous form is called evaporation.…

Q: if a sample of wood and the same mass of water were placed in direct sunlight for 6 hours, which one…

A: According to the question, The mass of wood = The mass of water = m The heat energy absorbed by wood…

Q: If 46.1g of copper at 11.6 degrees is place in 85.0g of water at 72.4 degrees what is the final…

A: Heat loss is given by the formula           -q = mC∆T     Or      -q = mC(Tf - Ti)  Where,  q=…

Q: 3.5 g of a hydrocarbon fuel is burned in a vessel that contains 250. grams of water initially at…

A: Given : Initial temperature of water = 25.00 oC Final temperature of water = 26.55 oC Mass of water…

Q: The specific heat capacity of copper is 0.384 J /g* degrees C. What is the molar specific heat…

A: For copper, Specific heat capacity, Cs = 0.384 J / g ℃ Molar mass, M = 63.54 g mol-1 Molar heat…

Q: A pure gold ring and pure silver ring have a total mass of 14.9 g.We heat the two rings to 62.0°C…

A: Given, A pure gold ring and a pure silver ring have a total mass = 14.9 g Volume of water =15.0 mL…

Q: A 200.0 g tin rod is heated to 178.0 degrees C and then is placed into an insulated vessel…

A:

Q: A gas is compressed from an initial volume of 5.55 L to a finalvolume of 1.22 L by an external…

A: The expression for the work done,  W=-P(Vf-Vi)W=-1.00 atm (1.22 L-5.55 L)W=4.33 L (101.33 J)1 L…

Q: A 37.2 g sample of zinc is heated to 124oC. It is then placed in a coffee cup calorimeter containing…

A: Mass of sample of Zinc = MZn = 37.2 g Specific heat of zinc = cZn = 0.387 J/(g oC)  Temperature of…

Q: 77. An 45.1 g sample of aluminum is placed on a 30.76 g sample of copper initially at 109.12C. If…

A: Given,mass of aluminum = 45.1 gmass of copper = 30.76 gInitial temperature of copper = 109.12…

Q: You are studying a chemical reaction. That reaction (the system) loses heat to the surroundings. O…

A: Endothermic reactions are those reactions in which heat energy is absorbed from the surroundings and…

Q: Perform the following heat calculation.  show all work and include units on answer A 45.4 g sample…

A:

Q: Consider a balloon filled with 2115 L of helium at 1.00 atm pressure and 45.5°C. The temperature of…

A:

Q: A beaker contains 115 g of ethanol at 18.2°C. If the ethanol absorbs 1125 J of heat without losing…

A: Given: mass of ethanol m=115g Initial Temperature Ti=18.2°C heat q=1125J Specific heat of ethanol…

Q: A 611.4 g sample of mercury absorbs 195.8 joules of heat. The specific heat capacity of mercury is…

A: Detail mathematical calculation is shown below

Q: For an exothermic reaction, how is the measured temperature change affected if some of the heat…

A: The amount of heat involved in a chemical of physical process is measured using the device called…

Q: A 5.00-g sample of liquid water at 25.0 °C is heated by the addition of 84.0 J of energy. T

A:

Q: To treat a burn on his hand, a person decides to place an ice cube on the burned skin. The mass of…

A: The mass of the ice sample is = 19.0 g The initial temperature of the water is = -11.5oC The final…

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

A: To estimate about specific heat , we would check heat energy added and temperature change.

Q: A 275-g sample of nickel at 100.0°C is placed in 100.0 mL of water at 22.0°C. What is the final…

A: We have to find final temperature of water  Given mass of nickel mm = 275g  heat capacity of metal…

Q: A sample of solid tungsten is heated with an electrical coil. If 31.2 Joules of energy are added to…

A: Given here mass of a sample of solid tungsten. Heated by adding some amount of heat placed at…

Q: 1. The temperature of a 98.7 g piece of metal increases from 17.0 °C to 31.0 °C when the metal…

A: Note: Since you have posted a question with multiple independent parts, we will solve first part for…

Q: required to heat 47.0g H2O(s) at -18.0 degrees Celcius to H2O (g) at 171.0 degrees Celcius?

A: Energy required

Q: A 2.200-g sample of quinine is burned in a bomb calorimeter whose total heat capacity is 7.854 KJ/o…

A: Given,Mass of quinine sample = 2.200g.Heat capacity = 7.854kJ/0C.Initial temperature = 23.440C.Final…

Q: A 1.211 g of benzoic acid (CH§ COOH) was ignited in pure oxygen gas and the heat released from the…

A: Here's a step-by-step explanation:1. **Understanding the System**: We have benzoic acid (C6H5COOH)…

Q: Metal A has a heat capacity of 0.450 J/g°C while metal B has a heat capacity of 1.250 J/g°C. If both…

A: Specific Heat capacity Cs, For Metal A : Cs = 0.450 J/g°C For Metal B : Cs = 1.250 J/g°C Energy…

Q: Which Slatement is True? O a. The heat capacity of a substance does not depend on the amount of…

A: extensive properties are the properties which depends upon the amount of the substance , heat…

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: A chemist measures the energy change AH during the following reaction: 2 NH3(g) → N₂(g) + 3H₂(g) Use…

A:

Q: A 5.70-g sample of iron is heated from 45.0degrees Celsius to 75.0degrees Celsius. The amount of…

A: Specific heat: Specific heat can be defined as quantity of heat required to raise the temperature of…

Q: A 225.0 gram sample of copper absorbs 735 J of heat from its surroundings. What is the temperature…

A: We have given that  A 225.0 gram sample of copper absorbs 735 J of heat from its surroundings. What…

Q: A 350.0 g lead rod is heated and then is placed into an insulated vessel containing 50.0 g of water…

A: We know that if two bodies that have significant difference in temperature, are in contact, the heat…