Activation energy is the energy required by reactants to undergo chemical reaction and given products
Every reactant has some internal energy (sum of all kind of energy like kinetic energy, potential energy, mechanical energy, chemical energy etc). It needs some extra energy to undergo chemical reaction which is activation energy
All kinds of reaction whether exothermic or endothermic needs activation energy
Threshold energy = internal energy + activation energy
Answer:
I think its the third one.
Explanation:
Single cell organisms are still alive.
Data:
Molarity, M = 1.25 M
mass, m = 36 grams
Solute, H2SO4
Formulas:
M = n / V => V = n / M
n = mass in grams / molar mass
Solution:
molar mass of H2SO4 = 98.079 g/mol
n = 38 g / 98,079 g/mol = 0.3874 mol
V = 0.3874 mol / 1.25M = 0.31 liter
Answer: 0.31 liter
