What happens when heat is added to silicon ?

What happens when heat is added to silicon ?
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happens when heat is added to silicon?
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What happens when is heat is added to silicon?

Description : What happens when is heat is added to silicon?

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What happens when a catalyst is added to a system at equilibrium? A The reaction follows an alternative pathway of lower activation energy. B The heat of reaction decreases. C The potential energy of the reactants decreases. D The potential energy of the products decreases. E The rate of chemical reaction decreases.

Description : What happens when a catalyst is added to a system at equilibrium? A The reaction follows an alternative pathway of lower activation energy. B The heat of reaction decreases. C The potential ... decreases. D The potential energy of the products decreases. E The rate of chemical reaction decreases.

Last Answer : A The reaction follows an alternative pathway of lower activation energy.

__________ is added in low carbon steel to raise its yield point. (A) Sulphur (B) Phosphorous (C) Silicon (D) Manganese

Description : __________ is added in low carbon steel to raise its yield point. (A) Sulphur (B) Phosphorous (C) Silicon (D) Manganese

Last Answer : (D) Manganese

Nickel and __________ are the alloying element added in steel to increase its toughness. (A) Molybdenum(B) Chromium(C) Vanadium(D) Silicon

Description : Nickel and __________ are the alloying element added in steel to increase its toughness. (A) Molybdenum (B) Chromium (C) Vanadium (D) Silicon

Last Answer : Option D

Impurity atoms to be added to pure silicon in order to make a p-type semiconductor belongs to

Description : Impurity atoms to be added to pure silicon in order to make a p-type semiconductor belongs to (a) Phosphorous (b) Boron (c) Antimony (d) Aluminium 

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How is silicon carbide formed? OR What happens when silicon and coke are heated?

Description : How is silicon carbide formed? OR What happens when silicon and coke are heated?

Last Answer : When a mixture of silicon and coke is heated in an electric furnace, silicon carbide is formed. It is an endothermic reaction. Si + C SiC

What happens when silicon is burnt in air?

Description : What happens when silicon is burnt in air?

Last Answer : Silicon burns brilliantly in air and vigorously in oxygen to form silicon dioxide. It is an exothermic reaction. Si + O 2 SiO 2

What happens when amorphous silicon is heated?

Description : What happens when amorphous silicon is heated?

Last Answer : When amorphous silicon is heated in air, it oxidizes at the surface level & catches fire.

Inside the ____ is a gas generator containing a mixture of NaN3 (Sodium Azide), KNO3 (Potassium Nitrate) and SiO2 (Silicon Dioxide). When the undesired event happens, an electric circuit is turned on by a sensor, and a series of chemical reactions generate nitrogen gas that fills ____ in 20 to 30 milliseconds. Fill up the blank

Description : Inside the ____ is a gas generator containing a mixture of NaN3 (Sodium Azide), KNO3 (Potassium Nitrate) and SiO2 (Silicon Dioxide). When the undesired event happens, an electric circuit is ... chemical reactions generate nitrogen gas that fills ____ in 20 to 30 milliseconds. Fill up the blank

Last Answer : Air-bags in automobiles.

Which of the following types of insulation will begin to deteriorate FIRST as a result of the heat generated in the conductor it surrounds? A. Varnished cloth B. Rubber C. Silicon D. Asbestos

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Metalloids (A) Are good conductor of heat & electricity (B) Act as electron donors with metals & as electron acceptor with non metals (C) Are not necessarily solids at room temperature (D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Description : Metalloids (A) Are good conductor of heat & electricity (B) Act as electron donors with metals & as electron acceptor with non metals (C) Are not necessarily solids at room temperature ... & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Last Answer : D) Are compounds that exhibit both metallic & non-metallic properties to some extent and are exemplified by elements like germanium, silicon & boron

Describe an activity to observe what happens when quick lime is added to water taken in a beaker. State two important observations and name the type of reaction taking place. -Chemistry

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(a) Write the essential condition for the following reaction to take place: 2AgBr—-> 2Ag + Br2 Write one application of this reaction. (b) Complete the following chemical equation of a chemical reaction 2FeS04 — chemical-reactions-and-equations-chapter-wise-important-questions-class-10-science-5 (c) What happens when water is added to quick line. Write chemical equation. -Chemistry

Description : (a) Write the essential condition for the following reaction to take place: 2AgBr--> 2Ag + Br2 Write one application of this reaction. (b) Complete the following chemical equation of a chemical ... science-5 (c) What happens when water is added to quick line. Write chemical equation. -Chemistry

Last Answer : Answer. This reaction is used in photography. (c) Slaked lime is formed with hissing sound and lot of heat is envolved.

What happens when metal is added to a metal ? F and j are in the field.

Description : What happens when metal is added to a metal ? F and j are in the field.

Last Answer : answer is yes.

What happens when lime is added to water ?

Description : What happens when lime is added to water ?

Last Answer : : Adding water to lime produces heat and calcium hydroxide

What Happens When Information is Added , Processed and Stored ?

Description : What Happens When Information is Added , Processed and Stored ?

Last Answer : Information technology is associated with the distribution , processing and storage of information.

What happens when ammonium chloride is added to water ?

Last Answer : Adding ammonium chloride to water reduces water temperature.

What happens if distilled water is not added to the battery as per time and requirement ?

Last Answer : Battery capacity decreases and plate can be damaged.

What happens when `H_(2)SO_(4)` added to `CaF_(2)`

Description : What happens when `H_(2)SO_(4)` added to `CaF_(2)`

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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?

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When phenolphthalein is added to a basic solution what happens?

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Last Answer : Phenolphthalein is added to a basic solution is colorless.

What happens when caustic soda is added to vinegar?

Description : What happens when caustic soda is added to vinegar?

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What happens to an electrical field around a single charge when another charge is added to the system?

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What happens to the energy added during a phase change apex?

Description : What happens to the energy added during a phase change apex?

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What happens when iodine is added to cornstarch?

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What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper? (1) There is a crackling sound (2) There is a violent explosion (3) There is no reaction (4) The paper ignites

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What happens when lime stone is not added during the extraction of iron?

Description : What happens when lime stone is not added during the extraction of iron?

Last Answer : If limestone is not added to charge during the extraction of iron, the blast furnace will get blocked.

What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Description : What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.

Last Answer : a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. After a few hours a coating of copper is seen on iron nail/plate. It is based on displacement reaction. ... on the inner walls of the test tube. Aldehyde group in glucose reduced silver nitrate to metallic silver.

What happens to a gold sol if gelatin is added to it ?

Description : What happens to a gold sol if gelatin is added to it ?

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What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? (1) There is a crackling sound. (2) There is a violent explosion. (3) There is no reaction. (4) The paper ignites.

Description : What happens when a drop of glycerol is added to crushed KMnO4 spread on a paper ? (1) There is a crackling sound. (2) There is a violent explosion. (3) There is no reaction. (4) The paper ignites.

Last Answer : There is a violent explosion.

When heat is added to or removed from a substance it may change its state. What state will most likely result if heat is added to a liquid?

Description : When heat is added to or removed from a substance it may change its state. What state will most likely result if heat is added to a liquid?

Last Answer : A gas.

When you heat a pot of water over a flame what form of energy is added to the water why?

Description : When you heat a pot of water over a flame what form of energy is added to the water why?

Last Answer : Need answer

How A 500 g piece of iron changes 7 C when heat is added. How much heat energy in joules is produced due to this change in temperature?

Description : How A 500 g piece of iron changes 7 C when heat is added. How much heat energy in joules is produced due to this change in temperature?

Last Answer : Need answer

What happen when heat is added to liquid?

Description : What happen when heat is added to liquid?

Last Answer : When heated, the particles in a liquid move faster.They collide with one another and take up more space so the liquid as a whole expands.

Can a heat pump be added to an above ground pool?

Description : Can a heat pump be added to an above ground pool?

Last Answer : Although it is advisable to check your manufacturer specifications, there are heat pumps available for above ground pools. You should expect to pay about $2,000.00 (+/-) for the unit itself plus any installations costs.

How would the equilibrium change if NO2 were added to SO2(g)+NO2(g)=NO(g)+SO3(g)+heat?

Description : How would the equilibrium change if NO2 were added to SO2(g)+NO2(g)=NO(g)+SO3(g)+heat?

Last Answer : The amount of NO and SO3 would increased.

In which of the following cycle heat is added at constant pressure? a. Otto cycle b. Diesel cycle c. Dual cycle d. Carnot cycle

Description : In which of the following cycle heat is added at constant pressure? a. Otto cycle b. Diesel cycle c. Dual cycle d. Carnot cycle

Last Answer : Answer b. Diesel cycle

In which of the following cycle heat is added at constant volume? a. Otto cycle b. Diesel cycle c. Dual cycle d. Carnot cycle

Description : In which of the following cycle heat is added at constant volume? a. Otto cycle b. Diesel cycle c. Dual cycle d. Carnot cycle

Last Answer : Answer a. Otto cycle

When quick lime is added to water (1) heat is liberated (2) heat is absorbed (3) temperature decreases (4) no heat change takes place

Description : When quick lime is added to water (1) heat is liberated (2) heat is absorbed (3) temperature decreases (4) no heat change takes place

Last Answer : (1) heat is liberated Explanation: When quick lime is added to water, then a chemical reaction takes places and slaked lime is formed, evolving heat in this process. It makes the water boil.

Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber? (A) Carbon (B) Alkylated diphenyl amine (C) Thiokol (D) Magnesium

Description : Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxidant used in rubber? (A) Carbon (B) Alkylated diphenyl amine (C) Thiokol (D) Magnesium

Last Answer : (B) Alkylated diphenyl amine

Which of the following is a correct observation when water is added to substance ̳X‘ (a) vigorous bubbling and a hissing sound (b) slow bubbling with no sound (c) vigorous bubbling with evolution of heat and a hissing sound (d) only hissing sound

Description : Which of the following is a correct observation when water is added to substance ̳X‘ (a) vigorous bubbling and a hissing sound (b) slow bubbling with no sound (c) vigorous bubbling with evolution of heat and a hissing sound (d) only hissing sound

Last Answer : (c) vigorous bubbling with evolution of heat and a hissing sound

In a Rankine cycle, regeneration results in higher efficiency because (a) Pressure inside the boiler increases [GATE-2003] (b) Heat is added before steam enters the low pressure turbine (c) Average temperature of heat addition in the boiler increases (d) Total work delivered by the turbine increases

Description : In a Rankine cycle, regeneration results in higher efficiency because (a) Pressure inside the boiler increases [GATE-2003] (b) Heat is added before steam enters the low pressure turbine (c) ... temperature of heat addition in the boiler increases (d) Total work delivered by the turbine increases 

Last Answer : (c) Average temperature of heat addition in the boiler increases  

Heat is added at constant pressure in an ideal __________ cycle. (A) Stirling (B) Brayton (C) Rankine (D) Both (B) and (C)

Description : Heat is added at constant pressure in an ideal __________ cycle. (A) Stirling (B) Brayton (C) Rankine (D) Both (B) and (C)

Last Answer : (D) Both (B) and (C)

Evaporative cooling process employs a combination of cooling and humidification in which the (A) Sensible heat is added (B) Sensible heat is removed and the latent heat is added (C) Latent heat is removed (D) Sensible heat is added and latent heat is removed

Description : Evaporative cooling process employs a combination of cooling and humidification in which the (A) Sensible heat is added (B) Sensible heat is removed and the latent heat is added (C) Latent heat is removed (D) Sensible heat is added and latent heat is removed

Last Answer : Option B

Limestone is added in the blast furnace (during pig iron manufacture) to (A) Form slag by combining with impurities (B) Supply heat by undergoing exothermic reaction with impurities (C) Reduce the coke consumption (D) Reduce slag viscosity

Description : Limestone is added in the blast furnace (during pig iron manufacture) to (A) Form slag by combining with impurities (B) Supply heat by undergoing exothermic reaction with impurities (C) Reduce the coke consumption (D) Reduce slag viscosity

Last Answer : Option A

Upto the critical radius of insulation, added insulation, will (A) Increase the heat loss (B) Decrease heat loss and will have no effect beyond that (C) Decrease heat flux (D) Reduce convection heat loss compared to conduction heat less

Description : Upto the critical radius of insulation, added insulation, will (A) Increase the heat loss (B) Decrease heat loss and will have no effect beyond that (C) Decrease heat flux (D) Reduce convection heat loss compared to conduction heat less

Last Answer : Option B

Quick lime (A) Generates heat when added to water (B) Reacts with carbon dioxide (C) May be used for white-washing (D) All the above

Description : Quick lime (A) Generates heat when added to water (B) Reacts with carbon dioxide (C) May be used for white-washing (D) All the above

Last Answer : Answer: Option D

The relative heat absorption for successively added equal areas of boiler convection heating surfaces__________ (A) Increases (B) Decreases (C) Remain unaffected (D) First increases and then decreases

Description : The relative heat absorption for successively added equal areas of boiler convection heating surfaces__________ (A) Increases (B) Decreases (C) Remain unaffected (D) First increases and then decreases

Last Answer : (B) Decreases

Which is not true about Heat (Q):  a. Q is positive when heat is added to the body or system  b. Q is negative when heat is rejected by the body or system  c. Q is positive when heat is rejected by the body or system  d. None of the above

Description : Which is not true about Heat (Q):  a. Q is positive when heat is added to the body or system  b. Q is negative when heat is rejected by the body or system  c. Q is positive when heat is rejected by the body or system  d. None of the above

Last Answer : Q is positive when heat is rejected by the body or system

A 1-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until the pressure rises to 3.5 MPa and the temperature to 400°. Determine the heat added.  a) 1378.7 kJ  b) 1348.5 kJ  c) 1278,7 kJ  d) 1246,5 kJ Formula: Q = (h2 – p2v2) –(h1 –p1v1)

Description : A 1-kg steam-water mixture at 1.0 MPa is contained in an inflexible tank. Heat is added until the pressure rises to 3.5 MPa and the temperature to 400°. Determine the heat added.  a) 1378.7 kJ  b) 1348.5 kJ  c) 1278,7 kJ  d) 1246,5 kJ Formula: Q = (h2 – p2v2) –(h1 –p1v1)

Last Answer : 1378.7 kJ