Today, I will focus on the thought process behind answering questions testing on the melting and boiling points of substances<\/strong>. The questions commonly asked in the MCQ section require students to analyse the state of the substances at different temperatures, which tends to confuse them.<\/p>\n\n This question type typically provides information on the properties of the substance at a certain temperature. This allows students to identify if the substance is a solid, liquid or gas. Subsequently, students are expected to determine the possible melting and boiling points of that substance using the gathered information.<\/p>\n Let us have a look at the question below.<\/p>\n Based on the information given about Substance Z in the question:<\/p>\n At 30\u02daC<\/strong><\/span><\/p>\n \u2192<\/strong> This suggests Substance Z is in a solid state.<\/p>\n 200\u02daC<\/strong><\/span><\/p>\n \u2192<\/strong> This suggests Substance Z is in a gaseous state.<\/p>\n We can represent these findings in the table below:<\/strong><\/p>\n With this information, we can safely conclude that the melting point of the substance is higher than 30\u02daC<\/strong> and the boiling point of the substance is lower than or equal to 200\u02daC<\/strong>.<\/p>\n Thus, the most suitable answer for this question would be Option 3<\/strong>.<\/p>\n This question type provides students with a list of substances and their respective melting and boiling points.<\/p>\n Students are to analyse the states of the substances at different temperatures. They may also be required to determine the temperature at which the substances will share the same state.<\/p>\n I find it easier to tackle the question by first labelling \u201cSolid (S)\u201d, \u201cLiquid (L)\u201d and \u201cGas (G)\u201d on the table.<\/p>\n Now, how do we know where to label Solid (S), Liquid (L) and Gas (G) on the table?<\/em><\/p>\n Substances at temperatures below the melting point have not melted yet and will be in the solid state. Thus, we write “Solid (S)<\/strong>” before the melting point<\/strong>.<\/p>\n On the other hand, substances at temperatures between the melting point and the boiling point would have melted but have not boiled yet and will be in the liquid state. Thus, we write “Liquid (L)<\/strong>” between the melting point and the boiling point<\/strong>.<\/p>\n Following that, substances at temperatures above the boiling point would have boiled and will be in the gaseous state. Thus, we write “Gas (G)<\/strong>“ after the boiling point<\/strong>.<\/p>\n In a nutshell, the following table shows how we should label \u201cSolid (S)\u201d, \u201cLiquid (L)\u201d and \u201cGas (G)\u201d respectively.<\/p>\n Next, we will indicate the temperature given in each option into the respective positions in the table to determine the state of matter for each substance.<\/p>\n Based on the options given and the 4 tables above, we can conclude that there will be two substances found in the liquid state only at Option (3): 78\u00b0C<\/strong>.<\/p>\n Thus, the correct answer is Option 3<\/strong>.<\/p>\n We hope that you’ve gained a better understanding in tackling the different questions types testing on the melting and boiling points of substances.<\/p>\n Stay tuned for more articles on how to tackle Science questions!<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row disabled_on=”off|off|off” admin_label=”CCI” _builder_version=”4.21.0″ custom_margin=”0px||” custom_padding=”0px||” global_module=”239753″ saved_tabs=”all” collapsed=”off” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ custom_padding=”|||” global_colors_info=”{}” custom_padding__hover=”|||”][et_pb_divider color=”#898989″ admin_label=”Divider” _builder_version=”4.16″ locked=”off” global_colors_info=”{}”][\/et_pb_divider][et_pb_image src=”https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2019\/05\/The-Pique-Lab-CCI-Science-Course-CTA.png” align=”center” align_tablet=”center” align_phone=”” align_last_edited=”on|desktop” admin_label=”CCI” _builder_version=”4.16″ z_index_tablet=”500″ global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.16″ text_font=”||||||||” text_text_color=”#333333″ text_font_size=”18px” text_orientation=”center” global_colors_info=”{}”]<\/p>\n If you like our methodology, we’ve some upcoming workshops:<\/p>\n [\/et_pb_text][et_pb_text _builder_version=”4.16″ text_font=”geomanist-medium||||||||” text_text_color=”#f44a4a” text_font_size=”18px” text_line_height=”2em” text_orientation=”center” global_colors_info=”{}”]<\/p>\n P3 Complete Concept Integration\u2122 Science Course<\/strong><\/a> [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":" <\/p>\n","protected":false},"author":30,"featured_media":241628,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","om_disable_all_campaigns":false,"_lmt_disableupdate":"no","_lmt_disable":"","footnotes":""},"categories":[11,3],"tags":[],"post_folder":[],"modified_by":"Jaimie Aberia","_links":{"self":[{"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/posts\/241184"}],"collection":[{"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/users\/30"}],"replies":[{"embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/comments?post=241184"}],"version-history":[{"count":9,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/posts\/241184\/revisions"}],"predecessor-version":[{"id":244116,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/posts\/241184\/revisions\/244116"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/media\/241628"}],"wp:attachment":[{"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/media?parent=241184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/categories?post=241184"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/tags?post=241184"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/thepiquelab.com\/blog\/wp-json\/wp\/v2\/post_folder?post=241184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Question Type #1<\/strong><\/h2>\n
![\"\"](\"https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2021\/08\/Heat-Energy-Melting-Boiling-Points-Question-Type-1-1024x445.png\")
<\/p>\n\n
\n
![\"\"](\"https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2018\/09\/Heat-Energy-Melting-Boiling-Points-Table-1024x370.png\")
<\/p>\n\n
Read Also<\/strong><\/h3>\n
\n
Question Type #2<\/strong><\/h2>\n
![\"\"](\"https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2021\/08\/Heat-Energy-Melting-Boiling-Points-Question-Type-2-1024x630.png\")
<\/p>\n![\"\"](\"https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2021\/08\/Heat-Energy-Melting-Boiling-Points-Table-1024x306.png\")
<\/p>\nOption (1)
![\"\"](\"https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2021\/08\/Heat-Energy-Melting-Boiling-Points-Table-Option-1.png\")
<\/h3>\nOption (2)<\/h3>\n
![\"\"](\"https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2021\/08\/Heat-Energy-Melting-Boiling-Points-Table-Option-2.png\")
<\/p>\nOption (3)<\/h3>\n
![\"\"](\"https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2021\/08\/Heat-Energy-Melting-Boiling-Points-Table-Option-3.png\")
<\/p>\nOption (4)<\/h3>\n
![\"\"](\"https:\/\/thepiquelab.com\/blog\/wp-content\/uploads\/2021\/08\/Heat-Energy-Melting-Boiling-Points-Table-Option-4.png\")
<\/p>\nConclusion<\/h2>\n
\n
P4 Complete Concept Integration\u2122 Science Course<\/strong><\/a>
P5 Complete Concept Integration\u2122 Science Course<\/strong><\/a>
P6 Complete Concept Integration\u2122 Science Course<\/strong><\/a><\/p>\n