Mechanical Engineering - Thermodynamics - Discussion

2. 

The oxygen atom is __________ times heavier than the hydrogen atom.

[A]. 2
[B]. 4
[C]. 8
[D]. 16

Answer: Option D

Explanation:

No answer description available for this question.

Sagar Ghanti said: (Aug 27, 2015)  
But how?

Amit said: (Aug 30, 2015)  
Mass number of H = 2.

Mass number of O = 32.

Ratio = 16.

Kumaresh said: (Oct 18, 2015)  
Molecular weight of H = 2.016.

Molecular weight of O = 32.

So 32/2.016 = 15.87 = 16.

Anand said: (Oct 18, 2016)  
Molecular weight of O is 16 only.

For O2 -> 32.

So, the answer is 16/2 = 8.

Tushar Sanghi said: (Mar 17, 2017)  
The answer should be 8.

Er Dheeraj Yashraj said: (Jul 25, 2017)  
The answer is 8.

Rajnikant said: (Jul 26, 2017)  
Yes, answer should be 8.

Akash said: (Oct 24, 2017)  
According to me, the correct answer is 8.

Mohtesan Maqsood said: (Oct 25, 2017)  
Atomic mass of hydrogen is 1 & oxygen is 16.

So, the oxygen atom is 16 times heavier than a hydrogen atom.

Swithin said: (Nov 10, 2017)  
Atomic weight of hydrogen is 1 and oxy is 16.

Deepak S said: (Feb 26, 2018)  
The molar mass of O2 = 2*16 = 32
The molar mass of H2 = 2*1 = 2

As w.k.t. atomic mass of both oxygen and hydrogen is 16 and 1 respectively, Hence
ratio of their masses = 32/2 = 16.

Surendra said: (Apr 8, 2018)  
Atomic mass of H = 1,

Atomic mass of O =16.

So, the ratio of the atomic mass of both is 16. Oxygen atom 16 times heavier than hydrogen atom.

Sparta Somu said: (Apr 19, 2018)  
O+O =O2.

16+16 =32,
16/2 + 16/2 = 32/2,
8+8=16.

Shahbaz Ali said: (Jul 4, 2018)  
Atomic mass of Oxygen is 16.
Atomic mass of Hydrogen is 1.
So it's ratio is 16/1=16. Answer.
So, option is D

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