# A sample of gas at 38.0 degrees C occupies a volume of 2.97 L and exerts a pressure of 3.14 atm. The ga...

A sample of gas at 38.0 degrees C occupies a volume of 2.97 L and exerts a pressure of 3.14 atm. The gas is heated to 118.0 degrees C and the volume is decreased to 1.04 L. Determine the new pressure exerted by the gas. (convert temperature to K before substituting in equation)

We can use the equation

p1V1 / T1 = p2V2 / T2

T1 = 38 + 273 = 311 K

T2 = 118 + 273 = 391 K

3.14 x 2.97 / 311 = p2 x 1.04 / 391

0.00340 = p2 x 0.00266

p2 = 11.3 atm

you have pV =nRT

in condition(1) p1 V1= nRT1

in condition(2) p2V2= nRT2

so p2V2/p1V1= T2/T1 p2V2T1 =p1V1T2 ; p2=p1V1T2/V2T1

here T1 =38+273=311K T2 = 118+273=391K

V1 =2.97L V2 = 2.97-1.04= 1.93L

so p2 = 3.14*391*3.14/(1.93*311)=6.43 atm

the eqn u need is P1V1/T1 =P2V2/T2

PLUG IN THE NUMBERS YOURSELF LAZY A**!

More Questions and Answers:

Explain.time is gold?
The solubility of lead chloride PbCl2 is 1.6x10^-2M. What is the Ksp of PbCl2?
When platinum is placed in aqua regia solution (mixture of HCl and HNO3), the following redox equation...?
How many liters of hydrogen (N2) are needed to produce 100 liters of ammonia (NH3) by direct combination with?
I found a 1964 quarter that feels really light and different than a regular quarter is it worth anything?
How is sand made?
New methods for use of waste materials?
Calculate molar mass?
What is the standard voltage of tin being oxidized?

**Answer:**We can use the equation

p1V1 / T1 = p2V2 / T2

T1 = 38 + 273 = 311 K

T2 = 118 + 273 = 391 K

3.14 x 2.97 / 311 = p2 x 1.04 / 391

0.00340 = p2 x 0.00266

p2 = 11.3 atm

you have pV =nRT

in condition(1) p1 V1= nRT1

in condition(2) p2V2= nRT2

so p2V2/p1V1= T2/T1 p2V2T1 =p1V1T2 ; p2=p1V1T2/V2T1

here T1 =38+273=311K T2 = 118+273=391K

V1 =2.97L V2 = 2.97-1.04= 1.93L

so p2 = 3.14*391*3.14/(1.93*311)=6.43 atm

the eqn u need is P1V1/T1 =P2V2/T2

PLUG IN THE NUMBERS YOURSELF LAZY A**!

The answers post by the user, for information only, FunQA.com does not guarantee the right.

More Questions and Answers: