5.What happens during the following phase transitions? (Bring up physical things like molecules have higher KE,...
5.What happens during the following phase transitions? (Bring up physical things like molecules have higher KE, the material becomes more dense, etc.)
a. Liquid → Solid
b. Liquid → Gas
c. Gas → Plasma
Homework Answers
a) Liquid to solid : In liquid spacing between atom/molecule is larger compare to solid. so liquid is less dense and have more kinetic energy than solid due to large spacing between molecule. solid have negligible compressibility. liquid can be compressed.
b) liquid to gas: The intermolecular force of attraction in gas is least than liquid. so gas molecule has high kinetic energy and very less dense. we can compressed easily gas molecule.
c) gas to plasma: plasma consist of hot ionized gas molecule. Plasma is least dense form of matter. Atom move fastest speed in plasma so kinetic energy more than gas. Plasma occurs at highest temperature.
summary: With changing temperature we could change the phase of matter( solid-liquid-gas-plasma). so there physical property change accordingly with spacing between atom/molecule.
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5.What happens during the following phase transitions? (Bring up
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please answer witb information on all questions 5. Which would have the higher vapor pressure H2...
please answer witb information on all questions
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Here is the procedure:
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1. What happens at the level of molecules, when a solid becomes a liquid? 2. Why do some parts of the crystals melt before the whole crystal or some other crystals? 3. Look up the melting points (in C) of the following species and include the reference. Benzoic acid Reference Fructose Reference Ascorbic acid Reference 4. Stable solids have strong bonds between molecules. Of the three compounds melted benzoic acid, fructose, and ascorbic acid-rank them from weakest bonds to strongest...
Quostion 5 Alloy phase diagrams are useful in determining the freezing range of various metals and alloys. The binary phase diagram for Lead (Pb) Tin (Sn) is given below for the full compositional range. Of the compositions given, which is expected to have the lowest fluidity? (a) Pure Lead (Pb) [Owt% Sn] (b) 10wt% Sn (c) 20wt% Sn (d) 60wt% Sn (e) Pure Tin (Sn) [100wt% Sn] 400 327 °C 350 Liquidus Line Liquid 300 232 "C 250 aPb +L...
please answer witb information on all questions
5. Which would have the higher vapor pressure H2 (1) or D2(1) explain the reasoning behind your choice. 6. What are the formulas of the two know chlorides of lead, why do these two compounds exist? Identify the mostly likely type of bonding to occur in each case. 7. The hydrogen bond the forms between hydrogen fluoride molecules is the strongest type hydrogen bond, so why does water have higher melting point than...
could this experiment have been done in a different order? for
example, fe filing being removed at the end of the scheme. Why or
Why not?
Here is the procedure:
INTRODUCTION Most of the matter around us con combination of two or more Mixtures have the following fundamental proper natter around us consists of mixtures of different substances. A mixture results from the tivo or more pure substances, elements or compounds that do not react chemically. • Each component of...
Page 1 Synthesis using Carbonyl O-Substitution Chemistry Preamble This experiment involves the synthesis of target molecules using a-substitution chemistry. You are assigned two target molecules, one of which is best synthesized by an alkylation approach, while the other is best synthesized by an addition or condensation approach. You must do the following: 1. Perform a retrosynthetic analysis on the two target molecules assigned to you. In each case the organic starting material (what you have to work backwards toward) depends...
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