Question
In: Chemistry
Which of the following descriptions and/or equations best represents the enthalpy change of a system? There...
Which of the following descriptions and/or equations best represents the enthalpy change of a system? There may be more than one correct answer. A. The heat absorbed or released during a phase change or chemical reaction at constant pressure B. The work done on or by a phase change or chemical reaction at constant pressure C. deltaH = deltaE + PdeltaV D. deltaE = q + w E. H= E + PV F. The heat sborbed or released during a phase change or chemical reaction at constant volume G. The amount of energy required to raise the temperature of 1 mole of a substance by 1 degree C at constant pressure H. The sum of the internal energy and the pressure-volume product of a system
Solutions
queen_honey_blossom answered 1 year agoRelated Solutions
which of the following equations best represents methanol being dissolved in water A. CH3OH(I) —> CH3+(aq)...
which of the following equations best represents methanol
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A. CH3OH(I) —> CH3+(aq) + OH-(aq)
B. CH3OH(I) —> CH3O-(aq) + H+(aq)
C. CH3OH(I) —> CH3OH(aq)
What is the boiling point of a solution of 9.04 g of I2
in 75.5g of benzene
A. 78.9 C
B. 80.1 C
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Which of the following descriptions best matches the function
of a dehydrogenase?
A. An enzyme that catalyzes the addition of phosphate groups
to other molecules
B. An enzyme that catalyzes a change in the position of a
specific chemical group within a
single molecule
C. An enzyme that catalyzes redox reactions
D. An enzyme that catalyzes the rearrangement of bonds within
a single molecule
31) Which of the following provide the best descriptions of totipotent stem cells? a) They are...
31) Which of the following provide the best
descriptions of totipotent stem cells?
a) They are converted from differentiated cells through stimulation
of some transcription factors
b) They are present in adult brain to produce new nerve cells to
facilitate learning and memory
c) They can produce both blood and immune cells
d) They are embryonic stem cells capable of generating every type
of cells in the body
Which of the following descriptions best fits the class of molecules known as nucleotides?
Which of the following descriptions best fits the class of
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Write a system of equations that represents the situation. Then, solve the system using the inverse...
Write a system of equations that represents the situation. Then,
solve the system using the inverse of a matrix.
Students were asked to bring their favorite fruit to class. 93% of
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enthalpy change
Suggest why it is difficult to measure the enthalpy change directly when an anhydrous salt is converted to a hydrated salt.
enthalpy change
Explain why the enthalpy change of neutralisation of one mole of sulfuric acid, H2SO4, is not the standard enthalpy change of neutralisation.
Which of the following represents the best description of difference between mitosis and meiosis in the...
Which of the following represents the best description of
difference between mitosis and meiosis in the male? please be
SPECIFIC AND EXPLAIN. FOR A AND P2
Which of the following best represents a market failure At the beginning of the pandemic, many...
Which of the following best represents a market failure
At the beginning of the pandemic, many grocery stores ran out of
toilet paper.
Five years ago Mylan pharmaceuticals held 90% of the market with
its EpiPen that administers life-saving medication in case of a
severe allergic reaction. Between 2014 and 2016, the price
of EpiPen rose from just under $300 to nearly $750 per
twin pack.
The year after the Philadelphia Eagles won the Super Bowl,
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Which of the following is the best definition of a corporate bond? (a) represents ownership, where...
Which of the following is the best definition of a corporate
bond?
(a) represents ownership, where a company promises to pay a
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(b) represents ownership and provides the holder the right to
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(c) an amortized loan that specifies a set payment that is the
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(d) a contractual obligation that provides the holder the right
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