How can gas particles be compressed and what happens to the volume of the gas?

How can gas particles be compressed and what happens to the volume of the gas?
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If the initial volume of an ideal gas is compressed to one-half its original volume and to twice its original temperature, the pressure:  a. doubles  b. halves  c. quadruples  d. triples

Description : If the initial volume of an ideal gas is compressed to one-half its original volume and to twice its original temperature, the pressure:  a. doubles  b. halves  c. quadruples  d. triples

Last Answer : quadruples

Assuming compression is according to the Law PV = C, Calculate the initial volume of the gas at a pressure of 2 bars w/c will occupy a volume of 6m³ when it is compressed to a pressure of 42 Bars.  a) 130m³  b) 136m³  c) 120m³  d) 126m³ Formula: P1V1/T1 =P2V2/T2

Description : Assuming compression is according to the Law PV = C, Calculate the initial volume of the gas at a pressure of 2 bars w/c will occupy a volume of 6m³ when it is compressed to a pressure of 42 Bars.  a) 130m³  b) 136m³  c) 120m³  d) 126m³ Formula: P1V1/T1 =P2V2/T2

Last Answer : 126m³

Twenty grams of oxygen gas are compressed at a constant temperature of 30 ˚C to 5%of their original volume. What work is done on the system.  A.824 cal  B.924 cal  C.944 cal  D.1124 cal Formula: W = -mRTln (V2/V1) Where R = (1.98 cal/gmole·K) (32 g/gmole)

Description : Twenty grams of oxygen gas are compressed at a constant temperature of 30 ˚C to 5%of their original volume. What work is done on the system.  A.824 cal  B.924 cal  C.944 cal  D.1124 cal Formula: W = -mRTln (V2/V1) Where R = (1.98 cal/gmole·K) (32 g/gmole)

Last Answer : 1124 cal

A gas is compressed in a cylinder by a movable piston to a volume onehalf its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be  (a) 300 Nm  (b) 300,000 Nm  (c) 30 Nm  (d) 3000 Nm  (e) 30,000 Nm.

Description : A gas is compressed in a cylinder by a movable piston to a volume onehalf its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be  (a) 300 Nm  (b) 300,000 Nm  (c) 30 Nm  (d) 3000 Nm  (e) 30,000 Nm.

Last Answer : Answer : b

Compressed air should not be used to clean motor controller equipment because ________________. A. it may force metallic particles into coil insulation B. the surrounding area may need additional cleaning C. the air blast dries out insulation quickly D. a mask and respirator would be required

Description : Compressed air should not be used to clean motor controller equipment because ________________. A. it may force metallic particles into coil insulation B. the surrounding area may need additional cleaning C. the air blast dries out insulation quickly D. a mask and respirator would be required

Last Answer : Answer: A

Which of the following represents the accepted method of cleaning dust and foreign particles from electrical equipment while limiting damage to electric components? A. Carefully wiping off the components with a soft cotton rag. B. Blowing a high velocity stream of compressed air rapidly across the components. C. Using a vacuum cleaner to remove debris from the components. D. Using carbon tetrachloride as a cleaning solvent to clean the components.

Description : Which of the following represents the accepted method of cleaning dust and foreign particles from electrical equipment while limiting damage to electric components? A. Carefully wiping off the components ... the components. D. Using carbon tetrachloride as a cleaning solvent to clean the components.

Last Answer : Answer: C

Low temperature oxidation of coal is accelerated by the (A) Storage in large heaps (B) Storage in compressed piles (C) Absence of porous or friable particles (D) All (A), (B) and (C)

Description : Low temperature oxidation of coal is accelerated by the (A) Storage in large heaps (B) Storage in compressed piles (C) Absence of porous or friable particles (D) All (A), (B) and (C)

Last Answer : (A) Storage in large heaps

How to decompress the compressed volume file？?

Description : How to decompress the compressed volume file？?

Last Answer : It asks you to download the password to access the rar file. When you do that, just go right click and click the option “extract file”.

How to calculate the volume of air in a compressed container?

Description : How to calculate the volume of air in a compressed container?

Last Answer : answer:This is one of the handiest rules of thumb to know.: 22.4 liters of gas at STP (Standand Temperature and Pressure weighs it's molecular weight in grams. For example 22.4 liters of Oxygen weighs 32 grams 22.4 ... it 400 grams of (assume) propane C3H8 ( MW 44) is 22.4 x 400/44 = ~200 liters.

Liquids (A) Cannot be compressed (B) Occupy definite volume (C) Are not affected by change in pressure and temperature (D) None of the above

Description : Liquids (A) Cannot be compressed (B) Occupy definite volume (C) Are not affected by change in pressure and temperature (D) None of the above

Last Answer : Answer: Option D

A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is (A) 400 kg/cm² (B) 4000 kg/cm² (C) (D)

Description : A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is (A) 400 kg/cm² (B) 4000 kg/cm² (C) (D)

Last Answer : Answer: Option B

When vapour is compressed isothermally the ____________ changes. A] Volume. B] Pressure C] Temperature D] None of the mentioned

Description : When vapour is compressed isothermally the ____________ changes. A] Volume. B] Pressure C] Temperature D] None of the mentioned

Last Answer : A] Volume.

When you push down on the piston of a bicycle pump, the air is compressed into a smaller volume, which causes its temperature to: w) decrease x) increase y) stay the same

Description : When you push down on the piston of a bicycle pump, the air is compressed into a smaller volume, which causes its temperature to: w) decrease x) increase y) stay the same

Last Answer : ANSWER: X -- INCREASE

When a gas is heated the particles move more quickly. What is the change in volume of a heated gas if the pressure is kept constant ?

Description : When a gas is heated the particles move more quickly. What is the change in volume of a heated gas if the pressure is kept constant ?

Last Answer : When a gas is heated the particles move more quickly. What is the change in volume of a heated gas if the pressure is kept constant ?

As compared to the volume occupied by gas, the volume of particles is A. more B. infinite C. negligible D. less than the volume of gas

Description : As compared to the volume occupied by gas, the volume of particles is A. more B. infinite C. negligible D. less than the volume of gas

Last Answer : negligible

What is compressed natural gas (CNG)?

Description : What is compressed natural gas (CNG)?

Last Answer : Compressed natural gas (CNG) is a type of gas that is compressed for use as a fuel in vehicles.

What is compressed natural gas (CNG)?

Description : What is compressed natural gas (CNG)?

Last Answer : Compressed natural gas (CNG) is a natural gas that's been compressed and stored in a tank, and can be used as a substitute for petrol or diesel in certain types of engines.

When using a spray can of compressed air/gas to clean your PC is it harmful to your computer when it comes out liquid when spraying?

Description : When using a spray can of compressed air/gas to clean your PC is it harmful to your computer when it comes out liquid when spraying?

Last Answer : answer:Not really, Just don't hold the can upside down or sideways if you can help it. There is a chance that it can discolor some plastics but otherwise don't worry about it. Duster is ... that is very unlikely. During gaming spec competitions they use liquid nitrogen as a CPU and GPU heatsink.

Which of the following statements is true about Methane? (1) It is widely used as a fuel. (2) It is a major component of bio-gas and Compressed Natural Gas. (3) It has a formula CH4. (4) All of the above

Description : Which of the following statements is true about Methane? (1) It is widely used as a fuel. (2) It is a major component of bio-gas and Compressed Natural Gas. (3) It has a formula CH4. (4) All of the above

Last Answer : (4) All of the above Explanation: All the statements mentioned above are correct. Furthermore, Hydrogen has a valency of 1 while Carbon has four valence electrons. In order to achieve ... , carbon shares these electrons with four atoms of hydrogen resulting in formation of methane- CH4.

In a refrigerator what produces the cooling? (1) The ice which deposits on the freezer (2) The sudden expansion of a compressed gas (3) The evaporation of a volatile liquid (4) None of these

Description : In a refrigerator what produces the cooling? (1) The ice which deposits on the freezer (2) The sudden expansion of a compressed gas (3) The evaporation of a volatile liquid (4) None of these

Last Answer : (4) None of these Explanation: Basically, refrigeration system consists of devices that compress and expand refrigerant gas. When refrigerant gas is compressed it expels heat and when it is suddenly ... inside of the fridge is cooled to a temperature below the ambient temperature of the room.

The gas used in a refrigerator is - (1) cooled down on flowing (2) heated up on flowing (3) cooled down when compressed (4) cooled down when expanded

Description : The gas used in a refrigerator is - (1) cooled down on flowing (2) heated up on flowing (3) cooled down when compressed (4) cooled down when expanded

Last Answer : (4) cooled down when expanded Explanation: Common refrigerants used in various applications are ammonia, sulfur dioxide, and non-halogenated hydrocarbons such as propane. Compressing these gasses into liquids they are made to give up their heat.

Steps taken by the Government of India to control air pollution include (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons (b) permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles (c) use of non-polluting compressed natural gas (CNG) only as fuel by all buses and trucks (d) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Description : Steps taken by the Government of India to control air pollution include (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and ... trucks (d) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Last Answer : (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons

The composition of fresh feed to the high temperature, high pressure urea autoclave is (A) Excess liquid ammonia and liquefied CO2 (B) Excess liquid ammonia and compressed CO2 gas (C) Liquid ammonia and excess compressed CO2 (D) Compressed ammonia gas and excess compressed CO2

Description : The composition of fresh feed to the high temperature, high pressure urea autoclave is (A) Excess liquid ammonia and liquefied CO2 (B) Excess liquid ammonia and compressed CO2 gas (C) Liquid ammonia and excess compressed CO2 (D) Compressed ammonia gas and excess compressed CO2

Last Answer : (B) Excess liquid ammonia and compressed CO2 gas

An ideal gas is compressed in a cylinder so well insulated that there is essentially no heat transfer. The temperature of gas  a. Remains constant  b. increases  c. decreases  d. is basically zero

Description : An ideal gas is compressed in a cylinder so well insulated that there is essentially no heat transfer. The temperature of gas  a. Remains constant  b. increases  c. decreases  d. is basically zero

Last Answer : increases

Helium ( R= 0.4698 BTU/lbm-˚R ) is compressed isothermally from 14.7 psia and 68 ˚F. The compression ratio is 1:4. Calculate the work done by the gas.  A. –1454 BTU/lbm  B. -364 BTU/lbm  C.-187BTU/lbm  D.46.7 BTU/lbm Formula: W = RT ln (V2/V1)

Description : Helium ( R= 0.4698 BTU/lbm-˚R ) is compressed isothermally from 14.7 psia and 68 ˚F. The compression ratio is 1:4. Calculate the work done by the gas.  A. –1454 BTU/lbm  B. -364 BTU/lbm  C.-187BTU/lbm  D.46.7 BTU/lbm Formula: W = RT ln (V2/V1)

Last Answer : -364 BTU/lbm

Is a cable is to be designed for use on 1000 kV, which insulation would you prefer ? (a) Polyvinyle chloride (b) Vulcanised rubber (c) Impregnated paper (d) Compressed SFe gas (e) none of the above

Description : Is a cable is to be designed for use on 1000 kV, which insulation would you prefer ? (a) Polyvinyle chloride (b) Vulcanised rubber (c) Impregnated paper (d) Compressed SFe gas (e) none of the above

Last Answer : (d) Compressed SFe gas

Cables for 220 kV lines are invariably (a) mica insulated (b) paper insulated (c) compressed oil or compressed gas insulated (d) rubber insulated (e) none of the above

Description : Cables for 220 kV lines are invariably (a) mica insulated (b) paper insulated (c) compressed oil or compressed gas insulated (d) rubber insulated (e) none of the above

Last Answer : (c) compressed oil or compressed gas insulated

The purpose of an accumulator is to: a. Relieve excess pressure b. Store fluid under pressure c. Store compressed gas for tyre inflation d. Remove air from the system

Description : The purpose of an accumulator is to: a. Relieve excess pressure b. Store fluid under pressure c. Store compressed gas for tyre inflation d. Remove air from the system

Last Answer : b. Store fluid under pressure

The purpose of an accumulator is to: a. Relieve excess pressure b. Store fluid under pressure c. Store compressed gas for tyre inflation d. Remove air from the system

Description : The purpose of an accumulator is to: a. Relieve excess pressure b. Store fluid under pressure c. Store compressed gas for tyre inflation d. Remove air from the system

Last Answer : b. Store fluid under pressure

A gas is compressed from 1 bar and 30°C to 5 bars and 30°C. Identify process and show on PV diagram.

Description : A gas is compressed from 1 bar and 30°C to 5 bars and 30°C. Identify process and show on PV diagram.

Last Answer : Gas is compressed from (1) 1 bar 30 0C to (2) 5 bar 30 0C Temp is constant. Hence process is isothermal. P x V = Constant

In a refrigerator what produces the cooling ? (1) The ice which deposits on the freezer (2) The sudden expansion of a compressed gas (3) The evaporation of a volatile liquid (4) None of these

Description : In a refrigerator what produces the cooling ? (1) The ice which deposits on the freezer (2) The sudden expansion of a compressed gas (3) The evaporation of a volatile liquid (4) None of these

Last Answer : None of these

Describe the procedure to locate leakage in Compressed Natural Gas Fuel supply system of a car. State relevant precaution.

Description : Describe the procedure to locate leakage in Compressed Natural Gas Fuel supply system of a car. State relevant precaution.

Last Answer : Procedure to locate Leakage in Compressed Natural Gas Fuel Supply System of a Car: 1. The first indicator is the foul smelling agent present in CNG.. 2. The second level of test you can do is to take a ... , incense sticks, etc. 2. Close the CNG regulator and 3. Put the safety cap on the cylinder.

According to the ideal gas law, what happens to the volume of a gas when the pressure doubles (all else held constant)?

Description : According to the ideal gas law, what happens to the volume of a gas when the pressure doubles (all else held constant)?

Last Answer : The volume is halved(Explanation): this is boyle's law PV=PV. In order to keep this equation true, if one variable (pressure in this case) is doubled, the other variable must be the reciprocal of that (in this case 1/2, which is reciprocal of double).

What happens to the volume of gas when its temperature is raised and its pressure is kept constant?

Description : What happens to the volume of gas when its temperature is raised and its pressure is kept constant?

Last Answer : Need answer

What happens to its volume when the temperature of a gas increases at constant pressure?

Description : What happens to its volume when the temperature of a gas increases at constant pressure?

Last Answer : The volume increases.

Assuming all other parameters remain constant, what happens to the pressure of a gas when the volume of the gas is increased? w) increases x) decreases y) fluctuates sinusoidally z) remains the same

Description : Assuming all other parameters remain constant, what happens to the pressure of a gas when the volume of the gas is increased? w) increases x) decreases y) fluctuates sinusoidally z) remains the same

Last Answer : ANSWER: X -- DECREASES

A liquid substance _______. A. has particles packed tightly together B. has definite volume C. has definite shape D. has particles arranged in a regular pattern?

Description : A liquid substance _______. A. has particles packed tightly together B. has definite volume C. has definite shape D. has particles arranged in a regular pattern?

Last Answer : has definite volume

__________ mean diameter of particles is given by Σ (xi /Dpi ⃗) (A) Mass (B) Volume (C) Arithmetic (D) Volume surface

Description : __________ mean diameter of particles is given by Σ (xi /Dpi ⃗) (A) Mass (B) Volume (C) Arithmetic (D) Volume surface

Last Answer : (B) Volume

A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is (A) 0.90 μm/s (B) 1 μm/s (C) 22.1 μm/s (D) 0.02 μm/s

Description : A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is (A) 0.90 μm/s (B) 1 μm/s (C) 22.1 μm/s (D) 0.02 μm/s

Last Answer : (B) 1 μm/s

Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) (A) m/ρ . Vp (B) m . ρ/Vp (C) m . Vp /ρ (D) Vp /m . ρ

Description : Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) (A) m/ρ . Vp (B) m . ρ/Vp (C) m . Vp /ρ (D) Vp /m . ρ

Last Answer : (A) m/ρ . Vp

Bond crushing law (A) Calls for relatively less energy for the smaller product particles, than does the Rittinger law (B) Is less realistic in estimating the power requirements of commercial crushers (C) States that the work required to form particle of any size from very large feed is proportional to the square root of the volume to surface ratio of the product (D) States that the work required for the crushing is proportional to the new surface created

Description : Bond crushing law (A) Calls for relatively less energy for the smaller product particles, than does the Rittinger law (B) Is less realistic in estimating the power requirements of commercial crushers ( ... (D) States that the work required for the crushing is proportional to the new surface created

Last Answer : (A) Calls for relatively less energy for the smaller product particles, than does the Rittinger law

Which of the following statement is correct? (A) In a compressible flow, the volume of the flowing liquid changes during the flow (B) A flow, in which the volume of the flowing liquid does not change, is called incompressible flow (C) When the particles rotate about their own axes while flowing, the flow is said to be rotational flow (D) All of the above

Description : Which of the following statement is correct? (A) In a compressible flow, the volume of the flowing liquid changes during the flow (B) A flow, in which the volume of the flowing liquid does not change, ... their own axes while flowing, the flow is said to be rotational flow (D) All of the above

Last Answer : Answer: Option D

What happens to the speed of particles when the temperature heats up?

Description : What happens to the speed of particles when the temperature heats up?

Last Answer : The speed of particles increase when temperature increase.

What happens to the particles of a substance when energy is added to it?

Description : What happens to the particles of a substance when energy is added to it?

Last Answer : Need answer

When energy transfer to air what happens to the particles of air?

Description : When energy transfer to air what happens to the particles of air?

Last Answer : When energy is transferred to air, the molecules in the airbecome more excited. The energy causes the molecules to move aroundmore than they did before, which could cause an increase intemperature, among other things.

What happens to the particles in a substance as it melts?

Description : What happens to the particles in a substance as it melts?

Last Answer : The particles move more quickly and begin to move from place toplace

If i burn toast what happens to the smoke particles?

Description : If i burn toast what happens to the smoke particles?

Last Answer : The smoke is spreading into the atmosphere.

When energy transfer to air what happens to the particles of air?

Description : When energy transfer to air what happens to the particles of air?

Last Answer : When energy is transferred to air, the molecules in the airbecome more excited. The energy causes the molecules to move aroundmore than they did before, which could cause an increase intemperature, among other things.

What happens to the particles in a substance as it melts?

Description : What happens to the particles in a substance as it melts?

Last Answer : The particles move more quickly and begin to move from place toplace

Is a 1080i video more prone to pixelation when compressed than a 1080p one?

Description : Is a 1080i video more prone to pixelation when compressed than a 1080p one?

Last Answer : answer:I'm going to guess it has as much to do with the presentation app. Streaming sites rely on software (e.g. silverlight) that makes a point of smoothing out missing data and motion. ... Sometimes it's the cameras (especially for fast-motion artifacts), sometimes it's the transmission uplinks .