Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

The ionisation energy of gaseous sodium atom is 495.80 kJ per mole. The lowest possible frequency of light that can ionise a sodium atom is how much? The options for the above question are:- 1.4.76*10 raised to power 14 per second, 2. 7.50*10 raised to power 14 per second, 3. 1.2410 raised to power 15 per second and 4. 3.15*10 raised to power 15 per second. Which of the following is correct among the given four options and how?.....Please give me the answer as soon as possible....
Asked by Pragnya Kar | 29 May, 2014, 12:24: PM
answered-by-expert Expert Answer

Ionisation energy per atom = 495.80 x 103J mol-1 = 8.233 x10-19J

6.022x1023 mol-1

E = h ν

ν = E = 8.233x10-19 J = 1.24 X1015 s-1

h 6.626x10-34J.s

Answered by Vaibhav Chavan | 30 May, 2014, 09:22: AM
CBSE 11-science - Chemistry
Asked by sk5987020 | 21 Nov, 2023, 10:53: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by kamyabansal2905 | 16 Jul, 2022, 07:11: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by jigneshd5127 | 18 Jan, 2021, 09:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by sulaikhasulu393 | 30 May, 2020, 11:30: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by ayushvasava2003 | 09 Mar, 2020, 02:28: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Trisha Gupta | 20 Feb, 2020, 08:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Trisha Gupta | 19 Feb, 2020, 08:54: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by amulyagampa2002 | 12 Dec, 2018, 11:29: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by Ujwalsidhu19 | 08 Nov, 2018, 12:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×