C hapter 1 MATTER IN IN OUR SURROUNDINGS As we look at our surroundings‚ we see a large variety of things with different shapes‚ sizes and textures. Everything in this universe is made up of material which scientists have named “matter”. The air we breathe‚ the food we eat‚ stones‚ clouds‚ stars‚ plants and animals‚ even a small drop of water or a particle of sand– each thing is matter. We can also see as we look around that all the things mentioned above occupy space‚ that is
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Some examples of matter would be water‚ air‚ and nitrogen! ● Slide 3: What are the three states of matter that are important in Chemistry? What are the major characteristics of solids? The three states of matter that are important in chemistry are solid‚ liquid‚ and gas. The major characteristics of solids are: particles are packed tightly together in an organized matter‚ usually dense‚ incompressible and do not flow. ● Slide 4: What are the major characteristics of liquids? The major characteristics of
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definite shape nor a definite volume. | 2. | Incompressible | Compressible to a small extent. | Highly compressible | 3. | There is little space between the particles of a solid. | These particles have a greater space between them. | The space between gas particles is the greatest. | 4. | These particles attract each other very strongly. | The force of attraction between liquid particles is less than solid particles. | The force of attraction is least between gaseous particles. | 5. | Particles of
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Perfect International LTD (PIL) “Oil & Gas” Limited is a privately owned company incorporated under the Companies Act Cap.486 of the laws of Kenya. The Company is licensed to procure and market petroleum products in the domestic Kenyan market as well as for export to the neighbouring Great Lakes region in Africa. The full range of petroleum products are marketed by the Company‚ these include Petrol (PMS) Refinery margin system (RMS) Dual purpose kerosene (DPK) Diesel (AGO) Industrial
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8.2.1 (iv) Fractional Distillation of Crude Oil By Blake Turner – Year 11 Fractional Distillation of Crude Oil Introduction Crude oil is the term for "unprocessed" oil‚ the stuff that comes out of the ground. It is also known as petroleum. Crude oil is a fossil fuel‚ meaning that it was made naturally from decaying plants and animals living in ancient seas millions of years ago -- most places you can find crude oil were once sea beds. Crude oils vary in colour‚ from clear to tar-black‚
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chemistry. In this lab‚ the ideal gas law helps determine and evaluate the molar mass of gases and volatile liquids. The ideal gas law compares four properties of a gas which include pressure‚ volume‚ moles‚ and temperature. During this experiment‚ the moles would be unknown‚ in effect the student must use a substance mass divided by its molar mass. With this‚ the ideal gas law can be arranged in an equation fit for helping the student determine the molar mass of a gas. Purpose: The purpose of the lab
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fracturing. Physical and Chemical Properties At normal pressure‚ liquid nitrogen boils at 77 K (−195.8°C or −320.4°F).The liquid to gas expansion ratio of nitrogen is 1:694‚ which means liquid nitrogen boils to fill a volume with nitrogen gas very quickly.Nitrogen is non-toxic‚ odorless‚ and colorless. It is relatively inert. It is not flammable.Nitrogen gas is slightly lighter than air once it reaches room temperature. It is slightly soluble in water. Storage liquid nitrogen is usually
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Sabrina Gournaris Period 3 March 27‚ 2012 Marshmallow: The Snack That Acts Like A Gas Objective: Record and observe marshmallow and compare it to Boyle’s law. Materials: -2 mini marshmallows -1 syringe -A pen Experimental Procedure: 1. Take out marshmallow. 2. Draw face on marshmallow. 3. Open stopcock. 4. Pull plunger out. 5. Put marhmallow in syringe. 6. Put plunger back into syringe
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ways to find the molar mass of a substance. One way‚ if the substance is a gas‚ is to use the Ideal Gas Equation to find molar mass. The standard equation reads PV=nRT where “n” is the number of moles present‚ “P” is the pressure (which is obtained by reading the barometric pressure of the room with the class barometer)‚ “V” is the volume of the gas‚ “R” is the universal constant‚ and “T” is the temperature of the gas. The experiment’s objective is to calculate the experimental value of molar mass
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1 Heat and Gases Chapter 1 Temperature and Thermometers New Senior Secondary Physics at Work Oxford University Press 2009 1 1 Temperature and Thermometers Practice 1.1 (p. 10) 1 B 2 D 3 A 4 Temperature is a measure of the degree of hotness of an object. 5 (a) On the Celsius temperature scale‚ the lower fixed point is the ice point (0 C) and the upper fixed point is the steam point (100 C). (b) We can reproduce the lower and upper fixed points by using pure melting ice and pure
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