An ideal gas sample of 2 moles initially at STP is isobarically
expanded
to twice its original volume. What must be its final
temperature?
a. 546 K
b. 137 K
c. 0 K
d. 819 K
In the previous question, by what factor does the internal
energy of the
gas change?
An ideal gas sample of 2 moles initially at STP is isobarically expanded to twice its...
a. 242 m/s b. 1.21 x 103 m/s c. 822 m/s d. 483 m/s 25. Is this rms speed the same or different from the nitrogen molecules in the sample? Explain. 26. An ideal gas sample of 11 moles initially at STP is isothermally compressed to half its original volume. What must be its final pressure? a. 4.8 atm b. 3 atm c. 2 atm d. 4 atm 27. In the previous question, by what factor does the internal energy...
A sample of n moles of a monatomic ideal gas is expanded isothermally and reversibly at a constant temperature T from a volume V to 3V. Note that since the temperature of the gas is constant, the internal energy will remain constant. a) Write an expression for the change in entropy ΔS for the system. b) The sample has 7 moles of gas and is kept at a temperature of 305 K. The volume is changed from 0.065 m3 to...
Two moles of an ideal gas initially has a temperature of 400 K and a volume of 40 Liters. The gas undergoes a free adiabatic expansion to twice its initial volume. a.) What is the entropy change of the gas? b.) What is the entropy change of the universe? explain please
Six kilomoles (12.095kg) of hydrogen gas (H2) at S.T.P. (Standard Temperature & Pressure) expands isobarically to twice its volume. What is the final temperature of the gas? What is the expansion work done by the gas? How much does the internal energy of the gas change? How much heat enters the gas during the expansion?
6. (25 points) One mole of a monatomic ideal gas, initially at pressure P1 = 105 Pa and temperature T1 = 273 K undergoes an isovolumetric process in which its pressure falls to half its initial value. a) What is the work done by the gas? What is the final temperature? b) The gas then expands isobarically (constant pressure) to twice its initial volume. What is the work done by the gas? What is the final temperature? c) Draw a...
A piston reversibly and adiabatically contracts 3.88 moles of ideal gas to one-tenth of its original volume, then expands back to the original conditions. It does this a total of five times. If the initial and final temperature of the gas is 27.5 degree C, calculate (a) the total work and (b) the total change in internal energy for the overall process.
The volume of four moles of an ideal monatomic gas at 300 K is reduced to one third its previous volume while the pressure is quadrupled. What is the change in the internal energy in moles?
2. 0.5 moles of an ideal gas is initially at T, = 300 K in a volume Va=0.8 L. This gas has a y value of 9/7. It is taken around the cycle as shown: (1) expanded isothermally to volume Vo = 1.6 L, from a to b. (2) expanded adiabatically to T. = 275 K, from b to c. 0.8L (3) compressed at constant pressure to T, = 235.74 K, from c to d. (4) compressed adiabatically back to...
A flexible balloon contains 0.400 mol of an unknown polyatomic gas. Initially the balloon containing the gas has a volume of 7500 cm3 and a temperature of 30.0 C. The gas first expands isobarically until the volume doubles. Then it expands adiabatically until the temperature returns to its initial value. Assume that the gas may be treated as an ideal gas with Cp=33.26J/mol⋅K Cp=33.26J/mol⋅K and γ=4/3 What is the total heat Q supplied to the gas in the process? What...
A flexible balloon contains 0.350 mol of an unknown polyatomic gas. Initially the balloon containing the gas has a volume of 6900 cm3 and a temperature of 30.0 ∘C. The gas first expands isobarically until the volume doubles. Then it expands adiabatically until the temperature returns to its initial value. Assume that the gas may be treated as an ideal gas with Cp=33.26J/mol⋅K and γ=4/3. What is the total heat Q supplied to the gas in the process? What is...