Monday

March 2, 2015

March 2, 2015

Posted by **Cliff** on Tuesday, November 23, 2010 at 4:17pm.

1.A sample of a gas in thermometer has a volume of 135mL at 11 degree celcius.Indicat what temperature(in k and degree celcius)would correspond to the foll.volume:

(a)volume:113mL temperature ??

Solution:Finding final temperature or T2 using Charles'law

T2= V2T1/V1

=(113ML)(11degree celcius/135mL

=9.21degree celcius.

2.If a 5.00L sample of an ideal gas was cooled from 24degree celcius to

-272degree celcius,what will the volume become? Give your answers in sign.figures.

Solution:Applying Charles'law

V2=V1T1/TI

=(5.00)(1kelvin)/297kelvins

= 0.17L

3.A sample of ammonia gas at standard pressure is heated from 20degrees celcius to 200degrees celcius.If the volume remains the same what is the final pressure in mmHg?

Solution:

Finding final pressure or P2,using Gay-Lussac's law

P2=P1T2/T1

=(1atm)(473K)/293K

=1.61atm

Thanks for your work.

- Chemistry -
**DrBob222**, Tuesday, November 23, 2010 at 5:24pma is not right. T must be substituted in Kelvin (K = 273 + C) for Charles' Law to work properly.

2. I worked the problem and obtained 0.0168 L. You are allowed three significant figures so you shouldn't round to two. I think you slipped a decimal point, too.

3. 1.61 atm looks good to me.

**Answer this Question**

**Related Questions**

Chemistry - A Sample Of Gas With A Volume Of 825mL Is Measured At 25.0 Degrees ...

Chemistry - Please let me know how I'm doing with the following chemistry ...

chemistry - a sample of helium gas has a volume of 6.50L at a pressure of 845mm ...

Chemistry - Tutors: thanks for your help. Is this how this problem is solved ? A...

chemistry - A gas 'x' is collected over water at 17 degree celcius and 750 mm ...

Chemistry - A 1.00 L sample of a pure gas weighs 0.785 g and is at 733.4 torr ...

Chemistry - A 1.00 L sample of a pure gas weighs 0.785 g and is at 733.4 torr ...

chemistry - 11.31) solve for the new pressure when each of the following ...

Heat & Properties of Matter - A platinum resistance thermometer has a resistance...

Heat & Properties of Matter - A platinum resistance thermometer has a resistance...