Table of Contents
According to the thermal properties of matter, mercury is the only liquid good conductor of heat. That is why it is also used in a mercury thermometer. We know that most metals are good conductors of heat as solid at room temperature.
What is the best liquid conductor of heat?
Solution: Mercury is the good conductor of heat.
What kind of liquid is the best conductor Why?
Most liquids that conduct electricity are solutions of acids, bases and salts. Distilled water is free of salts hence it is a poor conductor. When salt is dissolved in distilled water, we obtain a salt solution. Tap water is a good conductor of electricity as small amounts of mineral salts are naturally present in it.
Which liquid metal is the best conductor?
Bromine is a non-metal which exists as a liquid at room temperature. (c) Graphite is the allotropic form of carbon and it is a good conductor of electricity.
Which is good conductor of heat mercury or alcohol?
Mercury has the highest Thermal Conductivity in comparison to Iodine, Bromine, and Alcohol. Therefore, the correct option is A i.e., Mercury.
Is oil a better conductor of heat than water?
Why? For both the hot plate and the microwave, olive oil will heat up faster than water because the heat capacity of oil is lower than the heat capacity of water. Water requires more energy per gram of liquid to change its temperature.
Which liquid is not a poor conductor of heat?
Some materials are bad conductors of heat which means they don’t allow heat to flow through them. Liquids in general are poor conductors of electricity. However, liquids like mercury are good conductors of electricity even though it is a liquid. Hence water is a very poor conductor of heat from the options given.
Is pure water a insulator?
Well actually, pure water is an excellent insulator and does not conduct electricity. The thing is, you won’t find any pure water in nature, so don’t mix electricity and water.
Is milk a good conductor of electricity?
Milk is a good conductor of electricity because it contains water and lactic acids and other salts.
Which liquid is bad conductor of electricity?
Cellulose cannot conduct electricity so it is a poor conductor. i)Distilled water – Distilled water has no impurities in it, also it has no free electrons. So distilled water is a poor conductor of electricity.
Which metal is only liquid?
Mercury is the only metal that is liquid at normal temperatures.
What is the heaviest liquid on Earth?
Mercury is the densest liquid at standard conditions for temperature and pressure (STP). Also called quicksilver, mercury has been known for more than 3,500 years. It is an important metal in industry, but it is also toxic.
Is calcium a poor conductor of heat and electricity?
Calcium is classified as a solid and metal. Like most metals, calcium is a relatively good conductor of heat and electricity.
Which is the fastest mode of heat transfer?
Radiation is the fastest because in this case, the transfer of heat takes place at the speed of light. 5. Both conduction and convection need a material medium for the transfer for heat.
Is alcohol a good conductor of heat?
Alcohol is a poor conductor of heat.
Which liquid is a good conductor of heat and why?
According to the thermal properties of matter, mercury is the only liquid good conductor of heat. That is why it is also used in a mercury thermometer. We know that most metals are good conductors of heat as solid at room temperature.
Is cooking oil a good conductor of electricity?
Oil is an insulator and is a bad conductor of electricity. Complete step by step answer: The oil by nature does not conduct electricity. It does not allow electric current to pass through.
Is oil a good heat conductor?
Oil, although as manishearth said is a bad conductor, but not that bad to function as an thermal insulator mainly because of convection. What happens is the heat causes the viscosity of oil to reduce.
Is lemon juice a conductor?
Lemon juice has citric acid in it. Hence they can conduct electricity as these charged particles are able to flow inside the acid. Even though lemon as well as vinegar are weak conductors of electricity. The citric acid in the lemon will be acting as an electrolyte, a solution that can conduct electricity.
Which color is the bad conductor of heat?
Few metals are poor conductors of heat ,due to less concentration of free electrons. Silver is the best conductor of heat , copper and aluminium are good conductors while mercury is a poor conductor and lead is the poorest conductor.
Is Aluminium poor conductor of heat?
Aluminium is a bad conductor of electricity and heat when compared to certain metals like silver, copper and gold. But in general, it is a pretty good conductor of heat and electricity.
Which metal is a poor conductor of heat?
Lead is a metal that is a bad conductor of heat.
Why is pure water an insulator?
Since pure water does not contain any impurities Ca, Mg, Na and other salts which behave as the charge carriers, there are no ions found, and there is the absence of electrons. Hence pure water does not conduct electricity and is an insulator.
Is salt water an insulator?
For example, solid sodium chloride (NaCl, or table salt) does not conduct electricity; it is an insulator. There will be virtually no current flowing as water is a very poor conductor of electricity. Add a substance that will dissociate into ions (an “electrolyte”), such as table salt, and current will flow.
Is salt water an electrical conductor?
This is because saltwater is a good conductor of electricity which makes ocean water a resource for renewable energy. When you put salt in water, the water molecules pull the sodium and chlorine ions apart so they are floating freely, increasing the conductivity.
Is coconut water good conductor of electricity?
Coconut oil is a non polar liquid (when liquid) and does not have any free electrons which can move when you apply a potential (voltage) across it. The same chemical properties that make it so oil and water don’t mix makes it so oil cannot conduct electricity.
Is honey good conductor of heat?
Explanation: Honey is a poor conductor because it is made largely of sugars called fructose and glucose and some water. Conductors of electricity need mobile electrons or ions to carry the charge and sugars do not have either one.
Is Vinegar a good conductor?
Vinegar is an aqueous solution of acetic acid and is produced by the fermentation process of ethanol or sugars. Since it releases H+ and CH3COO- ions, movement of these ions in the solution aids in the conduction of electricity. Hence, we can say that vinegar is a good conductor of electricity.
