A3: Heating/phase change - 3 tier - Numbas at mathcentre.ac.uk

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Tom Stallard

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Tom Stallard 6 years, 2 months ago

Created this as a copy of Heating/phase change - 3 tier.

Name	Status	Author	Last Modified
Heating/phase change - core	draft	Tom Stallard	19/06/2016 01:44
Heat and temperature [temp] - graph	draft	Tom Stallard	03/02/2021 13:59
Heating/phase change	Ready to use	Tom Stallard	08/02/2018 18:18
Balancing heating in materials + wavelength	draft	Tom Stallard	12/02/2017 15:03
Balancing heating in materials	draft	Tom Stallard	12/02/2017 15:02
Solid phase change + power	Needs to be tested	Tom Stallard	16/11/2020 15:07
Christian's copy of Heating/phase change	draft	Christian Lawson-Perfect	13/04/2017 15:26
Heating/phase change - 3 tier	draft	Tom Stallard	12/01/2019 15:17
Solid phase change, radiation, entropy	draft	Tom Stallard	12/01/2019 13:56
Simple heating/phase change	draft	Tom Stallard	12/01/2019 14:00
Josh's copy of Heating/phase change	draft	Josh Lim	01/07/2019 11:58
Josh's copy of Solid phase change, radiation, entropy	draft	Josh Lim	01/07/2019 11:59
David's copy of Balancing heating in materials + wavelength	draft	David Rickard	03/12/2018 20:15
B: Solid phase change, radiation, entropy	draft	Tom Stallard	12/01/2019 14:27
B: Simple heating/phase change	draft	Tom Stallard	13/02/2019 11:44
A3: Heating/phase change - 3 tier	draft	Tom Stallard	12/01/2019 15:32
Heating/Phase Change	draft	Melissa D'Ascenzio	15/08/2019 12:35

There are 25 other versions that do you not have access to.

Question statement

{mass_string} of {Mat_string} is heated from {st_string} to {et_string}, changing in temperature and phase.

{if(switcharoo=1,twostep(),onestep())}

	Solid specific heat	Latent Heat of fusion	Liquid specific heat	Latent Heat of vapourisation	Gaseous specific heat	Fusion Temperature	Vaporisation Temperature
{Mat_string}	{solid_heatcap} JK<sup>-1</sup>kg<sup>-1</sup>	{phase1_latentheat} Jkg<sup>-1</sup>	{liquid_heatcap} JK<sup>-1</sup>kg<sup>-1</sup>	{phase2_latentheat} Jkg<sup>-1</sup>	{gas_heatcap} JK<sup>-1</sup>kg<sup>-1</sup>	{phase1_temp} K	{phase2_temp} K

Give any introductory information the student needs.

			Name	Type	Generated Value

switcharoo_comment	list	List of 3 items
switcharoo_type	string	solid_to_liquid
phase_temp	integer	273
phase_latentheat	integer	336000

			Name	Type	Generated Value

mass_string

string

820 g

			Name	Type	Generated Value

mat_string	string	H<sub>2</sub>O
phase1_temp	integer	273
phase2_temp	integer	373
gas_heatcap	integer	2000
phase1_latentheat	integer	336000
liquid_heatcap	integer	4200
phase2_latentheat	integer	2260000
solid_heatcap	integer	2100

			Name	Type	Generated Value

solidheat	number	148092
fusionheat	number	275520
liquidheat	number	230748
vapourheat	number	0.00000
gasheat	number	0.00000
totalheat	number	654360
totalheat_m	number	0.65436

			Name	Type	Generated Value

			st_string	string	-86 $^\circ$C
			et_string	string	67 $^\circ$C

			Name	Type	Generated Value

material_list	list	List of 4 items
solid_hc_list	list	[ 2100, 110, 390, 130 ]
liquid_hc_list	list	[ 4200, 140, 490, 150 ]
gas_hc_list	list	[ 2000, 135, 350, 110 ]
fusion_lh_list	list	List of 4 items
vapour_lh_list	list	List of 4 items
fusion_temp_list	list	[ 273, 234, 1357, 1337 ]
vapour_temp_list	list	[ 373, 630, 2835, 3243 ]

			Name	Type	Generated Value

switcharoo	integer	0
wat_mat	integer	0
start_temp	integer	187
end_temp	integer	340
k_c_switch	integer	0
mass	number	0.820

			Name	Type	Generated Value

advice1	string	Heating the solid: $Q = m \tim
advice2	string	Melting the H<sub>2</sub>O: $Q
advice3	string	Heating the liquid: $Q = m \ti
advice4	string
advice5	string

			Name	Type	Generated Value

Automatically regenerate variables?

Name

Data type

Value

(text strings)

Description

Describe what this variable represents, and list any assumptions made about its value.

Can an exam override the value of this variable?

Generated value: `list`

[ "solid_to_liquid", "solid_to_gas", "liquid_to_gas" ]

This variable doesn't seem to be used anywhere.

Choose one from a list

Ask the student a question, and give any hints about how they should answer this part.

What phases does the {mat_string} go through.

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Advanced settings

Selection type

Number of display columns

(not displayed in columns)

Custom marking matrix?

Solid, Liquid

Marks: Distractor Message:
Solid, Liquid, Gas

Marks: Distractor Message:
Liquid, Gas

Marks: Distractor Message:

Advice

Give a worked solution to the whole question.

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This question is used in the following exam:

FS0013 CLE-A3 by Tom Stallard in Foundation course FS0013 Heat and Energy.

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A3: Heating/phase change - 3 tier

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Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

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Checkpoint description

Tom Stallard 6 years, 2 months ago

Error in variable testing condition

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Generated value: `list`

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A3: Heating/phase change - 3 tier

Metadata

Taxonomy: mathcentre

Taxonomy: Kind of activity

Taxonomy: Context

Contributors

History

Comment

Checkpoint description

Tom Stallard 6 years, 2 months ago

Error in variable testing condition

Error

Warning

Generated value: list

Parts

Choose one from a list

Advanced settings

Generated value: `list`