# q, w, and DU

A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.500 atm. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and DU? Pay careful attention to units.

a. -256 J, +838 J, +1094 J
b. +256 J, -1398 J, -1142 J
c. -256 J, -1398 J, -1654 J
d. +256 J, +1398 J, +1654 J
e. -256 J, -419 J, -547 J

1. 0
1. Assistance needed.

Please type your subject in the School Subject box. Any other words are likely to delay responses from a teacher who knows that subject well.

posted by Writeacher
2. A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.500 atm. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and DU? Pay careful attention to units.

posted by hodhod
3. mina
q=-256 J
w=-1398 J
DU=-1654 J

posted by mina
4. A gas is allowed to expand at constant temperature from a volume of 2.00 L to 11.20 L against an external pressure of 1.520 bar. If the gas loses 256 J of heat to the surroundings, what are the values of q, w, and ÄU? Pay careful attention to units.

posted by Anonymous

## Similar Questions

1. ### Chemistry

1. If 22.5 L of nitrogen at 748 mm Hg are compressed to 725 mm Hg at constant temperature. What is the new volume? 2. A gas with a volume of 4.0L at a pressure of 205kPa is allowed to expand to a volume of 12.0L. What is the
2. ### Chemistry

By what factor does the volume increase when An ideal gas is allowed to expand from 3.80 L to 32.3 L at constant temperature
3. ### chemistry

An ideal gas is allowed to expand from 7.40 L to 55.5 L at constant temperature. By what factor does the volume increase?
4. ### chemistry

i keep trying to do these problems and i don't understand them. please help me!! 1. Gas stored in a tank at 273 K has a pressure of 388 kPa. The save limit for the pressure is 825 kPa. At what temperature will the gas reach this
5. ### Chemistry

C2H5NO2 + 2H2O → 2CO2 + NH3 + 3H2 You begin with 1.25 × 10-2 moles of glycine and an excess amount of water that will allow the reaction to proceed completely to products. This is all in a vessel with a volume of 850 mls at
6. ### thermodynamics

You allow a gas to expand freely from volume V to volume 2V. Later you allow the gas to expand freely from volume 2V to volume 3V. Is the net entropy change for these two expansions greater than, less than, or equal to the entropy
7. ### physics

1. You allow a gas to expand freely from volume V to volume 2V. Later you allow the gas to expand freely from volume 2V to volume 3V. Is the net entropy change for these two expansions greater than, less than, or equal to the
8. ### Chem

Can you please tell me if these are right? A gas has a volume of 2.8 L at a temperature of 27 degrees C. What temperature degrees C is needed to expand the volume to 15 L? (P and n are constant.) I got 1334 degress C Combined gas
9. ### Gem=neral Chemistry 106

A gas occupying a volume of 806 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
10. ### Chemistry

A gas occupying a volume of 664 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
11. ### Chemistry

A gas occupying a volume of 664 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?

More Similar Questions