(a) Interpretation: The area in square meters of a circular skating rink that has a 12 .5-m radius is to be calculated. Concept introduction: The metric system unit is the unit system which is accepted as the standard system of unit internationally. Thenonmetric units are the common unit system which is not standard for the parameter to be calculated.
(a) Interpretation: The area in square meters of a circular skating rink that has a 12 .5-m radius is to be calculated. Concept introduction: The metric system unit is the unit system which is accepted as the standard system of unit internationally. Thenonmetric units are the common unit system which is not standard for the parameter to be calculated.
Solution Summary: The author explains the formula used to calculate the area of a circular skating rink.
The area in square meters of a circular skating rink that has a 12.5-m radius is to be calculated.
Concept introduction:
The metric system unit is the unit system which is accepted as the standard system of unit internationally. Thenonmetric units are the common unit system which is not standard for the parameter to be calculated.
Interpretation Introduction
(b)
Interpretation:
The floor area and volume of a rectangular room that is 5.0m long, 2.8m wide, and 2.1m high are to be calculated.
Concept introduction:
The metric system unit is the unit system which is accepted as the standard system of unit internationally. Thenonmetric units are the common unit system which is not standard for the parameter to be calculated.
Interpretation Introduction
(c)
Interpretation:
The area of the triangular sail in square centimeters isto becalculated.
Concept introduction:
The metric system unit is the unit system which is accepted as the standard system of unit internationally. Thenonmetric units are the common unit system which is not standard for the parameter to be calculated.
MISSED THIS? Read Section 19.9 (Pages 878-881); Watch IWE 19.10
Consider the following reaction:
CH3OH(g)
CO(g) + 2H2(g)
(Note that AG,CH3OH(g) = -162.3 kJ/mol and AG,co(g)=-137.2 kJ/mol.)
Part A
Calculate AG for this reaction at 25 °C under the following conditions:
PCH₂OH
Pco
PH2
0.815 atm
=
0.140 atm
0.170 atm
Express your answer in kilojoules to three significant figures.
Ο ΑΣΦ
AG = -150
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kJ
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Calculate the free energy change under nonstandard conditions (AGrxn) by using the following relationship:
AGrxn = AGrxn + RTInQ,
AGxn+RTInQ,
where AGxn is the standard free energy change, R is the ideal gas constant, T is the temperature in kelvins, a
is the reaction quotient.
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Chapter 1 Solutions
Chemistry for Today: General Organic and Biochemistry
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell