6. At 25 oC and 100 kPa a gas occupies a volume of 20 dm3. Calculate the new temperature of the gas if
a) the volume is decreased to 10 dm3 at constant pressure.
b) the pressure is decreased to 50 kPa at constant volum
Turn on thread page Beta
chem as ideal gas watch
- Thread Starter
- 08-11-2016 19:39
- Official Rep
- 10-11-2016 20:50
Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
Just quoting in Fox Corner so she can move the thread if needed
Spoiler:Show(Original post by Fox Corner)
- 10-11-2016 21:18
First, you need to convert to the right units, K, Pa and m3. Then rearrange pV=nRT to make moles the subject, so it would be n=pV/RT. Then (keeping the moles you just calculated) set temperature as the subject, and substitute in your new volume and pressure volumes.