<span>R= 8.314 J/mol K
T= 273 + 102 = 375K</span><span>
= (3/2) x 8.314 x 375 = 4680 J/mol</span>
The answer would be <span>c.
Antimatter is made up of neutrons and electrons but no positive particles
Hope this helped</span>
289.4 F is the right one man