Suppose a change in a gaseous system is adiabatic and isothermal. What do you think the change in internal energy would be for such a change? Concept introduction: The work is performed on an object when an object moves a certain distance s due to the force F. Mathematically, it is indicated by the dot product of the force vector F and the distance vector s. The mathematical equation is given below, Work = F .s = | F | | s | cos θ Where θ is the angle between the vectors F and s. The unit of work is joules. Work is a way to transfer the energy. The energy is defined as the ability to do work and so energy and work are described using the same unit in joules. The specific heat is an intensive property. It is a proportionality constant represent by letter “c”. Materials with low specific heat, for example the metals requires less heat for relatively large change in the temperature. The specific heat is given by q = mc∆T Internal energy is the total energy of the system. For an isolated system the total energy of the system remains constant. Moreover the total energy of a system changes the energy change goes into either work, heat.
Suppose a change in a gaseous system is adiabatic and isothermal. What do you think the change in internal energy would be for such a change? Concept introduction: The work is performed on an object when an object moves a certain distance s due to the force F. Mathematically, it is indicated by the dot product of the force vector F and the distance vector s. The mathematical equation is given below, Work = F .s = | F | | s | cos θ Where θ is the angle between the vectors F and s. The unit of work is joules. Work is a way to transfer the energy. The energy is defined as the ability to do work and so energy and work are described using the same unit in joules. The specific heat is an intensive property. It is a proportionality constant represent by letter “c”. Materials with low specific heat, for example the metals requires less heat for relatively large change in the temperature. The specific heat is given by q = mc∆T Internal energy is the total energy of the system. For an isolated system the total energy of the system remains constant. Moreover the total energy of a system changes the energy change goes into either work, heat.
Solution Summary: The author explains that adiabatic and isothermal gaseous systems have the same internal energy. The unit of work is joules and the specific heat is an intensive property.
Suppose a change in a gaseous system is adiabatic and isothermal. What do you think the change in internal energy would be for such a change?
Concept introduction:
The work is performed on an object when an object moves a certain distance s due to the force F. Mathematically, it is indicated by the dot product of the force vector F and the distance vector s. The mathematical equation is given below,
Work = F.s = |F||s|cosθ
Where θ is the angle between the vectors F and s. The unit of work is joules. Work is a way to transfer the energy. The energy is defined as the ability to do work and so energy and work are described using the same unit in joules.
The specific heat is an intensive property. It is a proportionality constant represent by letter “c”. Materials with low specific heat, for example the metals requires less heat for relatively large change in the temperature. The specific heat is given by
q = mc∆T
Internal energy is the total energy of the system. For an isolated system the total energy of the system remains constant. Moreover the total energy of a system changes the energy change goes into either work, heat.
Write structural formulas for the major products by
doing addition reactions
1. You must add H2 as Pt is catalyst it does not take part in reactions
only speed up the process
H₂
CH2=CH-CH3
Pt
2. Add HCI break it into H and Cl
CH3
HCI
3. Add Br2 only CC14 is catalyst
CH3-CH=CH2
B12
CCl4
4. Add water to this and draw major product, H2SO4 is catalyst you have add
water H20 in both the reaction below
H₂SO4
CH3-CH=CH2
CH3
H2SO4/H₂O
CH3-C=CH2
reflux
?
Plan the synthesis of the following compound using the starting
material provided and any other reagents needed as long as
carbon based reagents have 3 carbons or less. Either the
retrosynthesis or the forward synthesis (mechanisms are not
required but will be graded if provided) will be accepted if all
necessary reagents and intermediates are shown (solvents and
temperature requirements are not needed unless specifically
involved in the reaction, i.e. DMSO in the Swern oxidation or
heat in the KMnO4 oxidation).
H
H
Hint These are benzene substitution reactions.
ALCI3 and UV light are catalyst no part in reactions and triangle A means
heating.
A. Add ethyl for Et in benzene ring alkylation reaction EtCl =
CH3CH2CL
1) EtC1 / AlCl3 / A
?
B: Add Br to benzene ring ( substitution)
2) Br₂ / uv light
?
C Add (CH3)2 CHCH2 in benzene ring ( substitution)
(CH3)2CHCH,C1 / AICI,
?