If 0.875 L of gas at 286 K expands to 1.731 L at 311 K and 1.54 atm, what was its initial pressure? Show work Why did the pressure decrease? Discuss the motion of particles not just the relationship between variables.

Q: Calculate the pressure of the sample

A: Formula :-  P1V1 = P2V2  P1 is the initial pressure  V1 is the initial volume  P2 is the final…

Q: A sample of helium gas at a pressure of 0.548 atm and a temperature of 129°C, occupies a volume of…

A:

Q: A 10.0 g sample of sodium metal reacts with 2.50 L of nitrogen gas at 0.976 atm and 28∘C to produce…

A: Balanced chemical equation can be defined as the equation in which equal number of atoms of each…

Q: A sample of 4.25 moles of hydrogen at 20.0ᵒC occupies a volume of 25.0L. Under what pressure is this…

A: The number of moles of the gas sample is = 4.25 moles The temperature of the gas sample is = 20.0oC…

Q: What would be the temperature (in K) of a 0.672 mol sample of gas if it occupied a volume of 0.537 L…

A:

Q: A sample of nitrogen gas (N2) is at a temperature of 25oC. Calculate the speed of the N2 molecule…

A: Since the kinetic energy of 1 mole of the gas molecules is given by  KE = (3/2) RT  where R = gas…

Q: if 0.3781 g of a gas with a molecular weight of 18.015 g/mol is in a ridged 5.00 l container at 384…

A: The ideal gas equation for the relation between pressure (P), volume (V) and temperature (T)…

Q: Dinitrogen pentoxide is used in the preparation of explosives. If 4.75 mol of dinitrogen pentoxide…

A:

Q: A sample of krypton gas occupies 5.00 L at 4.89 atm. What volume does the gas occupy at 10.4 atm?…

A:

Q: A cylinder with a moveable piston contains 0.551 mol of gas and has a volume of 251 mL. What will…

A: Initial moles of gas in the cylinder (n1) = 0.551 mol Initial volume of gas in the cylinder (V1) =…

Q: Iron III oxide reacts with H2 gas to yield Fe and water. What volume of H2 gas at 754.3 mmHg and 723…

A: A multiple choice question based on balancing the equation, which is to be accomplished.

Q: If a gaseous mixture is made by combining 2.56 g Ar2.56 g Ar and 3.64 g Kr3.64 g Kr in an evacuated…

A: Moles of Ar = mass of Ar / Atomic mass of Ar = 2.56 / 40 = 0.064  and moles of Kr = mass of Kr /…

Q: If a gas has a mass of 800.1 g and a volume fo 750 L at 34.9 deg C and 134.9 kPa, calculate the…

A:

Q: The figure shows two balloons. They are at the same temperature and pressure, and contain equal…

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Q: For the following oxygen, nitrogen, and helium mixture, determine the partial pressure of helium if…

A: Relation between partial pressure and mol fraction- According to Dalton’s law, partial pressure of…

Q: Consider 1.000 moles of a monoatomic ideal gas that is taken from state A to state D by different…

A: Given  mole of gas, n = 1.000 moles  State A : VA = 10.0 L, PA = 10.000 atm  State B : VB = 50.9 L,…

Q: nder what conditions of pressure and temperature would you expect a real gas to obey the ideal gas…

A: The ideal gas equation is: PV=nRT where, P is the pressure of the gas V is the volume of the gas R…

Q: In a sample of Ar gas at 298.15K, what fraction of the Ar atoms have a speed between 600 and 1500…

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

Q: A 1.38 mol sample of Ar gas is confined in a 32.9 liter container at 17.4  degrees celcius.  If the…

A: Given Moles = 1.38 Volume = 32.9 L T1 = 17.4°C T2 = 38.8°C

Q: A chemical reaction is carried out in a sealed container at constant pressure of 3.25 atm. The…

A:

Q: A sample of xenon gas at 303 K and 0.182 atm occupies a volume of 4.99 L. If the pressure of the gas…

A: This problem can be solved by using the ideal gas equation: PV= nRT P = Pressure n = Number of moles…

Q: You collected a sample of hydrogen gas in an inverted buret by displacement of water at 23.5 *C. The…

A:

Q: 7)An 1.05mol sample of oxygengas at a temperature of 27.0oC is found to occupy a volume of…

A: We have 1.05 mole of O2 gas at temperature of 27 °C, volume as 21.7 l, we have to calculate the…

Q: Assuming constant volume, and moles, how would the pressure of an ideal gas change if the…

A: The question is asking about the relationship between pressure, volume, and temperature in an ideal…

Q: Calculate: If 50.0 L of nitrogen is collected over water at 22°C when the atmospheric pressure is…

A: Given data, Temperature (T) = 30°C = 303 K Pressure (P) = 750 torr = 0.986842 atm By using the ideal…

Q: How is the kinetic energy of a gas related to temperature? How is the root mean square velocity of a…

A: We know that if heat is not transferred when the two systems are in contact, then it is said to be…

Q: < 2:01 Question 10 of 21 il ☎ Sub In the van der Waals equation, for what aspect does the factor 'b'…

A: Vander waal equation is a modified form of gas equation which describes the behavior of real gas.

Q: If 0.500 mol of gas occupies 0.050 L at 25 °C, what is the pressure exerted by the gas (in atm.)?…

A: Given, Number of moles, n = 0.500 moles Volume of gas = 0.050 L Temperature = 25°C K = 273 + °C…

Q: 11. When the volume of a gas increases at constant temperature: - the average kinetic energy…

A: 1.The average kinetic energy here refers to the average kinetic energy of the molecules of gas.The…

Q: Experiments show that the Ideal gas law describes the behavior of real gases quite well at high…

A: Given : We have to explain why this statement is correct .

Q: At 2.25atm and 308.15K an ideal gas occupies a volume of 6.00L. How many moles of the gas are…

A: Pressure=P=2.25atm temperature=T=308.15K volume=V=6.00L moles=n=?

Q: Consider 3.01*10^24 molecules of oxygen (atomic mass is 16.0 g/mole) in a container at a temperature…

A: A) The average translational kinetic energy is given by = (3/2)kT  Where k is the Boltzman's…

Q: At high pressures, real gases do not behave ideally. Calculate the pressure exerted by 27.5 g H2 at…

A: The van der Waals constant for H2 is as follows:

Q: Consider the reaction of NO2  If 23.8L of O2(g), measured at 35oC and 632mmHg is allowed to react…

A: Using Ideal gas law we can determine how many moles of O2 present in the reaction. Using…

Q: The alkali metals react with the halogens to form ionic metal halides. What mass of potassium…

A: Given -&gt; Volume of Cl2 = 5.10 L  Pressure of Cl2 = 0.950 atm  Temperature= 285.0K Weight of K =…

Q: In the Van Der Waals Equation for real gases what are the a and b variables and how to they adjust…

A: Vanderwall gas molecule have attraction between gas molecules  and they have significant size of…

Q: The volume of gas in a container was originally 3.24L, while at standard pressure, 1.00atm. What…

A: Given information: V1 = 3.24 L P1 = 1.00 atm P2 = 1.20 atm

Q: 7. Suppose that 7.53 grams of xenon (Xe) gas and 2.64 g of oxygen (O₂) gas are confined in a…

A: According to ideal gas law, the volume of a gas is directly proportional to the number of moles of…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.