We first calculate the heat released:
Specific heat = 3.21 kJ/kgK
Heat released = heat absorbed by calorimeter
Heat absorbed = mcΔT
= 1.9 x 3.21 x 4.542
= 27.7 kJ
Now, we calculate the moles of hexane present:
Moles = mass / Mr
moles = 0.58 / (12 x 6 + 14)
= 0.0067
Heat of combustion = 27.7 / 0.0067 kJ/mol
ΔH(combustion) = 4,134.3 kJ / mol
I think the answer is A, ozone depletion
hi there bestie [i think its 3]
Out of the following given choices;
A) when there are too many neutrons
B) when the neutrons are slowed down
C) when there is a chain reaction
D) when there is critical mass
The answer is A. A fission nuclear reactor is controlled by regulating the number of neurotoxins produced in the chain reaction. Too many neutrons cause an accelerated chain reaction that causes enormous heat to be generated in a short amount of time which could cause an explosion. Control rods , made of “neutron poisons”, e.g. cadmium, are put in the reactors to control the number of neutrons at any one time
The answer should be C) Balanced because if she doesn't want to change spots/move, than she doesn't want to be in motion which means she wants to stay still and that would be balanced.
