Question

ans this please question

Answer 1

Answer:

Explanation:

ans is a

Answer 2

Answer:

option 3 is the right answer

Explanation:

Given that, $\Delta_rH = \Delta_fH^{\circ}_{CO_2}$

Here, Delta f is given, which means formation

Formation of CO₂ is shown here.

We know that heat of formation means the heat which is produced when the compound is formed from its corresponding elements.

So, for formation of Carbon Dioxide, Carbon{C} and Oxygen (O₂) are the corresponding elements

We have two options, 3 and 4 for that...

If we observe there is a circle above H in the formula given. It indicates standard state. We know that standard state of Carbon is graphite. Hence, graphite option is to be considered

Thus, 3rd option is correct

Hope it helps!!