Question

How does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? A. the value of q is negative B. the value of q is positive C. the value of q remains constant D. the value of q decreases E. the value of q equals zero

Answer 1

Answer : The correct option is, (B) the value of q is positive.

Explanation :

Photosynthesis : It is a chemical process or a reaction which takes place in the green plants or the living organisms.  During this process, the carbon dioxide reacts with the water in the presence of sunlight to gives glucose and oxygen as a product.  

The balanced chemical reaction will be,

$6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2$

As we know that the photosynthesis reaction can not takes place without sunlight. So, the photosynthesis reaction is an endothermic reaction in which the energy or heat are given to the system. That means the value of 'q' will be positive. If heat is released by the system then the value of 'q' is negative.

Hence, the correct option is, (B) the value of q is positive.

Answer 2

The correct answer is :

B. the value of q is positive.

Hope this helps,

Davinia.