What pressure will be exerted by 10 moles of hydrogen gas in a 7.5 l cylinder at 20°c? (given: r = 8.314 l∙kpa/k∙mol)

3248.0 kPa of pressure will be exerted by 10 moles of hydrogen gas in a 7.5 L cylinder at 20°C.

Explanation:

Using ideal gas equation:  

PV = nRT

P= pressure = ?

V= volume =  

n = no of moles = 10 moles

R= gas constant =0.0821 kPaL\molK

T= temperature =

Thus pressure exerted is 3248.0 kPa

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.