Get 2 FREE Instant-Explanations on Filo with code FILOAPP

The value closest to the thermal velocity of a Helium atom at

Question

The value closest to the thermal velocity of a Helium atom at room temperature (300 K) in $m s^{- 1}$ is : [ $k_{B} = 1.4 \times 1 0^{- 23} J / K; m_{He} = 7 \times 1 0^{- 27} k g$ ]

1.3 \times 1 0^{4}

1.3 \times 1 0^{3}

1.3 \times 1 0^{5}

1.3 \times 1 0^{2}

Views: 995 students

Found 8 tutors discussing this question

Isabella Discussed

The value closest to the thermal velocity of a Helium atom at room temperature (300 K) in

m s^{- 1}

is : [

k_{B} = 1.4 \times 1 0^{- 23} J / K; m_{He} = 7 \times 1 0^{- 27} k g

]

14 mins ago

Discuss this question LIVE

14 mins ago

Text solutionVerified

Given,

T = 300 K

m = 7 \times 1 0^{- 27} k g

k_{B} = 1.4 \times 1 0^{- 23} J / K

The thermal velocity of helium is given by

v = \frac{3 k _{B} T}{m}

v = \frac{3 \times 1.4 \times 1 0 ^{- 23} \times 300}{7 \times 1 0 ^{- 27}}

v = 1.3 \times 1 0^{3} m / s

The correct option is B.

Was this solution helpful?

150

Report

One destination to cover all your homework and assignment needs

Learn Practice Revision Succeed

Instant 1:1 help, 24x7

60, 000+ Expert tutors

Textbook solutions

Big idea maths, McGraw-Hill Education etc

Essay review

Get expert feedback on your essay

Schedule classes

High dosage tutoring from Dedicated 3 experts

Trusted by 4 million+ students

Stuck on the question or explanation?

Connect with our chemistry tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Question Text	The value closest to the thermal velocity of a Helium atom at room temperature (300 K) in $m s^{- 1}$ is : [ $k_{B} = 1.4 \times 1 0^{- 23} J / K; m_{He} = 7 \times 1 0^{- 27} k g$ ]
Answer Type	Text solution:1
Upvotes	150