Is heating oil for deep frying until it boils chemical or physical?

Is heating oil for deep frying until it boils chemical or physical?
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1 Answer

Answer :

it is chemical
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Water boils at a lower temperature on the hills because – (1) it is cold on the hills (2) there is less carbon dioxide on the hills (3) there is a decrease in air pressure on the hills (4) There is less oxygen

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The rice is cooked more quickly in a pressure cooker because – (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Description : The rice is cooked more quickly in a pressure cooker because – (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Last Answer : (4) water boils at a higher temperature under pressure. Explanation: The rice can be cooked faster in a pressure cooker since the boiling point of water increases with pressure. In general, the higher the ... of the water in a pressure cooker is higher than temperature of the water in an open pot.

Water boils at a lower temperature on the hills because – (1) it is cold on the hills (2) there is less carbon dioxide on the hills (3) there is a decrease in air pressure on the hills (4) There is less oxygen

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Last Answer : (3) there is a decrease in air pressure on the hills Explanation: Water boils at a lower temperature on top of a mountain because there is less air pressure on the molecules. Water boils when the ... at high elevations foods that are cooked by boiling take a little longer to cook at high elevation.

Absolute Zero is defined as – (1) The temperature at which all molecular motion ceases (2) At which water boils at 298K (3) At which liquid Helium boils (4) At which the volume becomes zero

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Last Answer : (1) The temperature at which all molecular motion ceases Explanation: Absolute zero is the temperature at which all motion in matter stops and is thought to be unreachable. It is ... nature have minimal vibrational motion, retaining only quantum mechanical, zero-point energy-induced particle motion.

What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

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Last Answer : (2) The liquid boils Explanation: Ordinary evaporation is a surface phenomenon -since the vapor pressure is low and since the pressure inside the liquid is equal to atmospheric pressure plus ... pressure is equal to atmospheric pressure, bubbles form, and the vaporization becomes a volume phenomena.

Water boils at low temperature on mountains because

Description : Water boils at low temperature on mountains because

Last Answer : Atmospheric pressure is less at mountains.

Water boils at low temperature on mountains because–

Description : Water boils at low temperature on mountains because–

Last Answer : Atmospheric pressure is less at mountains.

Water boils quicker on mountains.

Description : Water boils quicker on mountains.

Last Answer : Ans: On Mountains the pressure of the air is low due to height, as the air pressure decreases with altitude. In this way, water boils quicker on mountains at temperature less than 100 degree centigrade, which is the boiling point of water at ground level.

In a pressurised water reactor (PWR), the (A) Fuel is natural uranium and heavy water acts both as moderator & coolant (B) Coolant water boils in the core of the reactor (C) Coolant water is pressurised to prevent bulk boiling of water in the core (D) Use of moderator is not required

Description : In a pressurised water reactor (PWR), the (A) Fuel is natural uranium and heavy water acts both as moderator & coolant (B) Coolant water boils in the core of the reactor (C) Coolant water is pressurised to prevent bulk boiling of water in the core (D) Use of moderator is not required

Last Answer : (C) Coolant water is pressurised to prevent bulk boiling of water in the core

Beryllium chloride, BeCl2, melts at 405°C and boils at 520°C. That compares with 714°C and 1412°C for magnesium chloride.Give reason ?

Description : Beryllium chloride, BeCl2, melts at 405°C and boils at 520°C. That compares with 714°C and 1412°C for magnesium chloride.Give reason ?

Last Answer : Ans Be forms covalent compounds

Water always boils when its (A) Temperature reaches 100° C (B) Vapour pressure equals 76 cm of Hg (C) Saturated vapour pressure equals the external pressure on its surface (D) Saturated vapour pressure is less than the atmospheric pressure

Description : Water always boils when its (A) Temperature reaches 100° C (B) Vapour pressure equals 76 cm of Hg (C) Saturated vapour pressure equals the external pressure on its surface (D) Saturated vapour pressure is less than the atmospheric pressure

Last Answer : (C) Saturated vapour pressure equals the external pressure on its surface

The temperature at which water boils depends mainly on ------? A. Air temperature B. Relative humidity C. Air pressure (Answer) D. Air density E. The specific heat of air

Description : The temperature at which water boils depends mainly on ------? A. Air temperature B. Relative humidity C. Air pressure (Answer) D. Air density E. The specific heat of air

Last Answer : C. Air pressure (Answer)

Water is a highly effective coolant for a car engine because -----? A. Water is good conductor of heat B. Water has very high specific heat capacity (Answer) C. Water boils at a comparatively high temperature D. Evaporation of water produces lot of cooling

Description : Water is a highly effective coolant for a car engine because -----? A. Water is good conductor of heat B. Water has very high specific heat capacity (Answer) C. Water boils at a comparatively high temperature D. Evaporation of water produces lot of cooling

Last Answer : B. Water has very high specific heat capacity (Answer)

Using an organic fluid that boils at a low temperature means that energy could be regeneratedfrom waste fluids is known as ________. a) Heat exchanger b) Heat remover c) Heat pumps d) Heat absorber`

Description : Using an organic fluid that boils at a low temperature means that energy could be regeneratedfrom waste fluids is known as ________. a) Heat exchanger b) Heat remover c) Heat pumps d) Heat absorber

Last Answer : Heat pumps

Liquid hydrogen boils at 17 K. What is the temperature in degrees Celsius?  a. 290  b. 63  c. -120  d. -256

Description : Liquid hydrogen boils at 17 K. What is the temperature in degrees Celsius?  a. 290  b. 63  c. -120  d. -256

Last Answer : -256

Water boils when:  A. Its saturated vapor pressure equals to the atmospheric pressure  B. Its vapor pressure equals 76cm of mercury  C. Its temperature reaches 212 degree Celsius  D. Its vapor pressure is 1 gram per sq. cm

Description : Water boils when:  A. Its saturated vapor pressure equals to the atmospheric pressure  B. Its vapor pressure equals 76cm of mercury  C. Its temperature reaches 212 degree Celsius  D. Its vapor pressure is 1 gram per sq. cm

Last Answer : Its saturated vapor pressure equals to the atmospheric pressure

Absolute Zero is defined as (1) The temperature at which all molecular motion ceases (2) At which water boils at 298K (3) At which liquid Helium boils (4) At which the volume becomes zero

Description : Absolute Zero is defined as (1) The temperature at which all molecular motion ceases (2) At which water boils at 298K (3) At which liquid Helium boils (4) At which the volume becomes zero

Last Answer : The temperature at which all molecular motion ceases

The rice is cooked more quickly in a pressure cooker because (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Description : The rice is cooked more quickly in a pressure cooker because (1) it is covered. (2) less quantity of water is used. (3) None of these (4) water boils at a higher temperature under pressure.

Last Answer : water boils at a higher temperature under pressure. 

Water boils at a lower temperature on the hills because (1) it is cold on the hills (2) there is less carbon dioxide on the hills (3) there is a decrease in air pressure on the hills (4) There is less oxygen

Description : Water boils at a lower temperature on the hills because (1) it is cold on the hills (2) there is less carbon dioxide on the hills (3) there is a decrease in air pressure on the hills (4) There is less oxygen

Last Answer : there is a decrease in air pressure on the hills

What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

Description : What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

Last Answer : The liquid boils

Heating with heat from a deep well, do you have experience?

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I dropped an iron frying pan on my heel, and it (my heel) has gone a little bit white. Anything I should be really worried about?

Description : I dropped an iron frying pan on my heel, and it (my heel) has gone a little bit white. Anything I should be really worried about?

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