Question

Which of the following are true (can be multiple) A. Two moles of helium (He) has...

Which of the following are true (can be multiple)

A. Two moles of helium (He) has the same total thermal energy as two moles of oxygen (O) when they are both at 80° C, even though an oxygen atom is heavier than a helium atom.
B. The average kinetic energy of an atom of an ideal gas approaches zero at a temperature of 0° C.
C. The ideal gas law can be written as PV = NkbT,where N is the number of molecules of the gas in the volume V and kb is the Boltzmann constant.
D. If the temperature of a gas is heated from 10° C to 40° C, the average velocity of the atoms in the gas goes up by a factor of 2.

Homework Answers

Answer #1

A. Two moles of helium (He) has the same total thermal energy as two moles of oxygen (O) when they are both at 80° C, even though an oxygen atom is heavier than a helium atom.

C. The ideal gas law can be written as PV = NkbT,where N is the number of molecules of the gas in the volume V and kb is the Boltzmann constant.

B is not true. Because, kinetic energy approaches zero at 0 K bit not at 0 C.

D is also not true. because, when final temperature is 4 times of initial temperature in Kelvin scale the average velocity would be doubled.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Decide which of the following statements are true and which are false. True False  Real gas molecules...
Decide which of the following statements are true and which are false. True False  Real gas molecules behave most ideally at low temperature and high pressure. True False  Ideal gas molecules have small volumes and exert weak attractive forces on one another. True False  At constant temperature, the heavier the gas molecules, the smaller the average velocity. True False  In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a...
Two moles of helium are initially at a temperature of 30.0 ∘C and occupy a volume...
Two moles of helium are initially at a temperature of 30.0 ∘C and occupy a volume of 3.50×10−2 m3 . The helium first expands at constant pressure until its volume has doubled. Then it expands adiabatically until the temperature returns to its initial value. Assume that the helium can be treated as an ideal gas. A.) What is the total heat supplied to the helium in the process? In J B.) What is the total change in internal energy of...
Suppose that 4.8 moles of an ideal diatomic gas has a temperature of 1061 K, and...
Suppose that 4.8 moles of an ideal diatomic gas has a temperature of 1061 K, and that each molecule has a mass 2.32 × 10-26 kg and can move in three dimensions, rotate in two dimensions, and vibrate in one dimension as the bond between the atoms stretches and compresses. It may help you to recall that the number of gas molecules is equal to Avagadros number (6.022 × 1023) times the number of moles of the gas. a) How...
Which of the following statements are true? A.The number of moles in 1.00 atm of gas...
Which of the following statements are true? A.The number of moles in 1.00 atm of gas was the same, despite the fact that the gases themselves had different identities. B.The number of moles in 1.00 atm of gas varied linearly with increasing molar mass. C.The volume of the gas varied depending on the identity of the gas. D.The number of moles in 1.00 atm of gas varied hyperbolically with increasing molar mass. Given Avogadro's Law, which of the following statements...
12a. Two moles of an ideal gas are placed in a container whose volume is 3.7...
12a. Two moles of an ideal gas are placed in a container whose volume is 3.7 x 10-3 m3. The absolute pressure of the gas is 7.2 x 105 Pa. What is the average translational kinetic energy of a molecule of the gas? Number Entry field with incorrect answer now contains modified data Units Entry field with correct answer b. Two ideal gases have the same mass density and the same absolute pressure. One of the gases is helium (He),...
The escape velocity from a massive object is the speed needed to reach an infinite distance...
The escape velocity from a massive object is the speed needed to reach an infinite distance from it and have just slowed to a stop, that is, to have just enough kinetic energy to climb out of the gravitational potential well and have none left. You can find the escape velocity by equating the total kinetic and gravitational potential energy to zero. Given that consider any gas close to the surface of the Moon at a temperature of the Moon's...
A sealed cubical container 23.0 cm on a side contains a gas with three times Avogadro's...
A sealed cubical container 23.0 cm on a side contains a gas with three times Avogadro's number of argon atoms at a temperature of 27.0°C. (a)Find the internal energy (in J) of the gas. ___J (b)The total translational kinetic energy (in J) of the gas. __J (c)Calculate the average kinetic energy (in J) per atom. __J (d) Use P = (2/3)(N/V)(1/2mv^2) to calculate the gas pressure (in Pa). __Pa (e) Calculate the gas pressure (in Pa) using the ideal gas...
5. One mole of oxygen gas is at a pressure of 6.90 atm and a temperature...
5. One mole of oxygen gas is at a pressure of 6.90 atm and a temperature of 25.0°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature? °C (b) If the gas is heated so that both the pressure and volume are doubled, what is the final temperature? °C 6. (a) An ideal gas occupies a volume of 1.6 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of...
A flask at room temperature contains exactly equal amounts (in moles) of nitrogen and xenon. (MM...
A flask at room temperature contains exactly equal amounts (in moles) of nitrogen and xenon. (MM N2 = 28.01 g/mol, MM Xe = 131.3 g/mol) a. Which of the two gases exerts the greater partial pressure? BRIEFLY explain your answer. b. The molecules or atoms of which gas have a greater average speed? BRIEFLY explain your answer. c. If a small hole were opened in the flask, which gas would effuse more quickly? BRIEFLY explain your answer. d. The molecules...
A rigid cubic container of side 0.25 m is filled with 10 moles of the ideal...
A rigid cubic container of side 0.25 m is filled with 10 moles of the ideal gas Xenon and is then sealed so that no gas can get out or in. The initial pressure of the gas is recorded as 2.8 x 105 Pa. You may use the following values for this question: Gas constant R: 8.31 J/(mol K) Boltzmann constant kB : 1.38 x 10-23 J/K Avogadro's number NA: 6.02 x 1023 /mol A) Determine the total amount of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT