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HP 33s User Manual

Page 215

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Solving and Integrating Programs

14–5

| –

!

Ends the program.

‡

)

Cancels Program–entry mode.

Checksum and length of program: 36FF 21

Now calculate the change in pressure of the carbon dioxide if its temperature
drops by 10 °C from the previous example.

Keys:

(In RPN mode)

Display:

Description:

I

L

)

Stores previous pressure.

| W

H

)

Selects program “H.”



P

#@
)

Selects variable P; prompts for V.

g

@
)

Retains 2 in V; prompts for N.

g

@
)

Retains .005 in N; prompts for R.

g

!@
)

Retains .0821 in R; prompts for T.

‘

10

…

!@
)

Calculates new T.

g

#
/
)

Stores 287.1 in T; solves for new
P

.

L

L

…

. )

Calculates pressure change of the
gas when temperature drops from
297.1 K to 287.1 K (negative
result indicates drop in pressure).