Atank holds 10.3 mol of an ideal gas at an absolute pressure of 519 kpa while at a temperature of 361.38°c. (a) compute the container's volume (b) the gas is now heated to 651.6 °c. what is the pressure of the gas now?

(a) 62.57 L

(b) 801.94 kPa

Explanation:

Given:

= number of moles of gas = 10.3 mol

= initial pressure of the gas =

= initial temperature of the gas =

= final temperature of the gas =

= volume of the tank

R = universal gas constant =

Part (a):

Using Ideal gas equation, we have

Hence, the volume of the container is 62.567 L.

Part (b):

As the volume of the container remains constant.

Again using ideal gas equation,

Hence, the final pressure of the gas is now 801.94 kPa.

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m