Answer:
336.8 kilo Joules is the change in internal energy of the system.
Explanation:
The equation for first law of thermodynamics follows:
where,
Q = heat added to the system
ΔU = Change in internal energy
W = work done
We have :
Amount of heat given out by the system will be negatuive as heat relased by the system = Q
Q= 
Work done on the system will positive as work is done on the system:
w = 
336.8 kilo Joules is the change in internal energy of the system.
Answer:
A - Matter with a specific and constant chemicals composition
Its the only answer that makes sense
Answer:
Mass of Cr = 0.25376 gram
Moles of Fe = 0.0011875
Mass of Te = 0.05472 gram
Moles of Ti = 7.9764
Explanation:
Given:
Elements Moles Mass
Cr 0.00488
Fe 66.5 mg = 0.0665
Ti 48
Hg 1.60 kg = 1600
Computation:
Mass = Atomic mass x moles
Moles = Mass / Atomic mass
Atomic mass
Cr = 52 u
Fe = 56 u
Te = 127.6 u
Hg = 200.59 u
Mass of Cr = 0.00488 x 52
Mass of Cr = 0.25376 gram
Moles of Fe = 0.0665 / 56
Moles of Fe = 0.0011875
Mass of Te = 1.14 x 10⁻³ x 48
Mass of Te = 0.05472 gram
Moles of Ti = 1600 / 200.59
Moles of Ti = 7.9764
This will give substituted product which will be by SN2 mechanism
so here we will get product with inverted geometry
In SN2 mechanism the nucleophile attacks from back side and we always get product with inverted geometry
This is known as Walden inversion.
