The second-order rate constant for the decomposition of nitrous oxide to nitrogen molecules and oxygen atoms has been determined at various temperatures:

k(1/M·s) t(°C)
1.87 x10^-3 600
0.0113 650
0.0569 700
0.244 750

Determining the activation energy graphically.

The value of the activation energy is 240.96 kJ/mol.

Explanation:

According to the Arrhenius equation,

The graph between log(k) and (1/T) will give straight line with negative slope along with the intercept corresponding to the value of A.

Slope f the line =

The slope of the line :

The value of the activation energy is 240.96 kJ/mol.

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.