In a endothermic reaction energy from an outside source is continuously being added.
Theoretical yield:
02 -> H2O
1mol -> 2mol
2mol -> 4mol
32g -> 72g
Theoretical yield = 72g
Percent yield = actual yield/theoretical yield * 100
= 33.1/72 *100
=45.97%
<h2>Answer:</h2>
The correct answer is option B which is fusion occurs in the sun.
<h3>Explanation:</h3>
- Fusion in nuclear physics is an reaction in which two or more nuclei fuse to form another atom and due to mass conservation they also release energy.
- This reaction is common in sun and provides energy to sun.
- In sun two hydrogen atoms fuse to for a helium nuclei and giving some amount of energy.
- In sun there are 620 million metric tons of hydrogen fuse together each second.