(a)
Interpretation:
The given statement is always true, always false or true in specific condition has to be explained.
Concept Introduction:
The first law of
(b)
Interpretation:
The given statement is always true, always false or true in specific condition has to be explained.
Concept Introduction:
Same as part (a).
(c)
Interpretation:
The given statement is always true, always false or true in specific condition has to be explained.
Concept Introduction:
Same as part (a).
(d)
Interpretation:
The given statement is always true, always false or true in specific condition has to be explained.
Concept Introduction:
Same as part (a).
(e)
Interpretation:
The given statement is always true, always false or true in specific condition has to be explained.
Concept Introduction:
Same as part (a).
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Chapter 4 Solutions
ACHIEVE/CHEMICAL PRINCIPLES ACCESS 2TERM
- What are the two ways that a final chemical state of a system can be more probable than its initial state?arrow_forwardThe formation of aluminum oxide from its elements is highly exothermic. If 2.70 g Al metal is burned in pure O2 to give A12O3, calculate how much thermal energy is evolved in the process (at constant pressure).arrow_forwardWhen 1.000 g of ethylene glycol, C2H6O2, is burned at 25C and 1.00 atmosphere pressure, H2O(l) and CO2(g) are formed with the evolution of 19.18 kJ of heat. a Calculate the molar enthalpy of formation of ethylene glycol. (It will be necessary to use data from Appendix C.) b Gf of ethylene glycol is 322.5 kJ/mol. What is G for the combustion of 1 mol ethylene glycol? c What is S for the combustion of 1 mol ethylene glycol?arrow_forward
- For the reaction BaCO3(s) BaO(s) + CO2(g), rG = +219.7 kJ/mol-rxn. Using this value and other data available in Appendix L, calculate the value of fG for BaCO3(s).arrow_forwardWould the amount of heat absorbed by the dissolution in Example 5.6 appear greater, lesser, or remain the same if the heat capacity of the calorimeter were taken into account? Explain your answer.arrow_forwardCalculatethe work performed by a person whoexertsa force of 30 NN = newtonstomove abox 30metersif the force were a exactly parallel to the directionofmovement, and b45to thedirection of movement. Do the relative magnitudesmakesense?arrow_forward
- Explain inyour own words why work done by the system is defined as the negative of pV, not positive pV.arrow_forwardA 220-ft3 sample of gas at standard temperature and pressure is compressed into a cylinder, where it exerts pressure of 2000 psi. Calculate the work (in J) performed when this gas expands isothermally against an opposing pressure of 1.0 atm. (The amount of work that can be done is equivalent to the destructive force of about 1/4 lb of dynamite, giving you an idea of how potentially destructive compressed gas cylinders can be if improperly handled!)arrow_forwardWhat is the sign of the work when a refrigerator compresses a gas (the system) to a liquid during the refrigeration cycle?arrow_forward
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