Understanding And Controlling Solve - HP 33s Owner's Manual

¥
A 5–liter flask contains nitrogen gas. The pressure is 0.05 atmospheres when the
temperature is 18°C. Calculate the density of the gas (N × 28/V, where 28 is the
molecular weight of nitrogen).
Keys:
º d
Û
N
¥
.05
¥
5
¥
Ï
18 273.1
¥
¸
28
h ¯
V

Understanding and Controlling SOLVE

SOLVE uses an iterative (repetitive) procedure to solve for the unknown variable.
The procedure starts by evaluating the equation using two initial guesses for the
unknown variable. Based on the results with those two guesses, SOLVE generates
another, better guess. Through successive iterations, SOLVE finds a value for the
unknown that makes the value of the equation equal to zero.
File name 33s-E-Manual-1008-Publication(1st).doc
Printed Date : 2003/10/8
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Size : 13.7 x 21.2 cm
Stores 297.1 in T; solves
for P in atmospheres.
Description:
Displays the equation.
Solves for N; prompts for
P.
Stores .05 in P; prompts
for V.
Stores 5 in V; prompts for
R.
Retains previous R;
prompts for T.
Calculates T (Kelvins).
Stores 291.1 in T; solves
for N.
Calculates mass in
grams, N × 28.
Calculates density in
grams per liter.
Solving Equations
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