Water has maximum density at------? A. 0°C B. 4°C (Answer) C. 4° K D. 4.8°C

Water has maximum density at------?

A. 0°C

B. 4°C (Answer)

C. 4° K

D. 4.8°C
by

1 Answer

Answer :

B. 4°C (Answer)
by

Related questions

What happens when water is cooled from 8°C to 0°C? 1. Its volume decreases uniformly, becoming minimum at 0°C. 2. Its density increases uniformly, attaining maximum value at 0°C. 3. Its volume decreases up to 4°C and then increases 4. Its density increases up to 4°C and then decreases. Which of the above answers is/are correct? (a) Only 1 (b) Only 2 (c) 3 and 4 (d) 1 and 2

Description : What happens when water is cooled from 8°C to 0°C? 1. Its volume decreases uniformly, becoming minimum at 0°C. 2. Its density increases uniformly, attaining maximum value at 0°C. 3. Its volume decreases up to 4°C and then increases ... is/are correct? (a) Only 1 (b) Only 2 (c) 3 and 4 (d) 1 and 2

Last Answer : Ans:(c)

Water has maximum density at _____? A. 0°C B. 4°c C. 40K D. 4.8°C

Description : Water has maximum density at _____? A. 0°C B. 4°c C. 40K D. 4.8°C

Last Answer : ANSWER: B

Water has maximum density at (a) Room temperature (b) 0°C (c) 4°C (d) 100°C

Description : Water has maximum density at (a) Room temperature (b) 0°C (c) 4°C (d) 100°C

Last Answer : Ans:(c)

Water has maximum density at – (1) -4°C (2) 0°C (3) 4°C (4) 100°C

Description : Water has maximum density at – (1) -4°C (2) 0°C (3) 4°C (4) 100°C

Last Answer : (3) 4°C Explanation: When cooled from room temperature liquid water becomes increasingly dense, as with other substances, but at approximately 4 °C (39 °F), pure water reaches its maximum density.

At what temperature is the density of water the maximum? (1) 2°C (2) 4°C (3) 0°C (4) 1°C

Description : At what temperature is the density of water the maximum? (1) 2°C (2) 4°C (3) 0°C (4) 1°C

Last Answer : (2) 4°C Explanation: An especially notable irregular maximum density is that of water, which reaches a density peak at 3.98 °C (39.16 °F).

Water has maximum density at – (1) 100°C (2) 0°C (3) 4°C (4) 273°C

Description : Water has maximum density at – (1) 100°C (2) 0°C (3) 4°C (4) 273°C

Last Answer : (3) 4°C Explanation: The maximum density of water occurs at 4 °C because at. this temperature, two opposing effects are in balance. Water is an exceptional compound that has a lower density in the ... due to the ion nature of water in the liquid phase, which packs the molecules tightly together.

Maximum density of water exists at (a) 0°C (b) 4°C (c) 40°C (d) 100°C

Description : Maximum density of water exists at (a) 0°C (b) 4°C (c) 40°C (d) 100°C

Last Answer : (b) 4°C

Water has maximum density at (1) 100°C (2) 0°C (3) 4°C (4) 273°C

Description : Water has maximum density at (1) 100°C (2) 0°C (3) 4°C (4) 273°C

Last Answer : 4°C

Specific gravity is defined as the ratio of – (1) density of the substance to the density of water (2) density of the substance to the density of water at 0°C (3) density of water at 4°C to the density of the substance (4) density of the substance to the density of water at 4°C

Description : Specific gravity is defined as the ratio of – (1) density of the substance to the density of water (2) density of the substance to the density of water at 0°C (3) density of water at 4°C to the density of the substance (4) density of the substance to the density of water at 4°C

Last Answer : (1) density of the substance to the density of water Explanation: Specific gravity is the ratio of the density of a substance to the density (mass of the same unit volume) of a reference substance. The reference substance is nearly always water for liquids or air for gases.

The density of water is 1 g/cc. This is strictly valid at – (1) 0°C (2) 4°C (3) 25°C (4) 100°C

Description : The density of water is 1 g/cc. This is strictly valid at – (1) 0°C (2) 4°C (3) 25°C (4) 100°C

Last Answer : (2) 4°C Explanation: Water never has an absolute density because its density varies with temperature. Water has its maximum density of 1 g/cm3 at 4 degrees Celsius. When the temperature changes from either greater or ... 1 g/cm3. Water has the maximum density of 1 g/cm3 only when it is pure water.

The density of water is 1 g/cc. This is strictly valid at (1) 0°C (2) 4°C (3) 25°C (4) 100°C

Description : The density of water is 1 g/cc. This is strictly valid at (1) 0°C (2) 4°C (3) 25°C (4) 100°C

Last Answer :  4°C

Specific gravity is defined as the ratio of (1) density of the substance to the density of water (2) density of the substance to the density of water at 0°C (3) density of water at 4°C to the density of the substance (4) density of the substance to the density of water at 4°C

Description : Specific gravity is defined as the ratio of (1) density of the substance to the density of water (2) density of the substance to the density of water at 0°C (3) density of water at 4°C to the density of the substance (4) density of the substance to the density of water at 4°C

Last Answer : density of the substance to the density of water

Chilling injury in plants occurs at a temperature: a. <4°C b. <5°C c. <8°C d. <9°C

Description : Chilling injury in plants occurs at a temperature: a.

Last Answer :

Density of water is maximum at (A) 0° C (B) 0° K (C) 4° C

Description : Density of water is maximum at (A) 0° C (B) 0° K (C) 4° C

Last Answer : Answer: Option C

The temperature condition for storage of drug products under cold temperature is given as : (A) temperature between 8°C and 25°C (B) temperature below 20 C (C) temperature at 0°C (D) temperature between 2c C and S: C

Description : The temperature condition for storage of drug products under cold temperature is given as : (A) temperature between 8°C and 25°C (B) temperature below 20 C (C) temperature at 0°C (D) temperature between 2c C and S: C

Last Answer : (D) temperature between 2c C and S: C

The density of water is 1000 kg/m3 at (A) 0° C (B) 0° K (C) 4° C (D) 20° C

Description : The density of water is 1000 kg/m3 at (A) 0° C (B) 0° K (C) 4° C (D) 20° C

Last Answer : Answer: Option C

The temperature of the top of a frozen lake is – 15°C. What is the temperature of the water in the lake in contact with the ice layer? (a) 0°C (b) 4°C (c) –15°C (d) –7.5°C

Description : The temperature of the top of a frozen lake is – 15°C. What is the temperature of the water in the lake in contact with the ice layer? (a) 0°C (b) 4°C (c) –15°C (d) –7.5°C

Last Answer : Ans:(a)

A standard ice point temperature corresponds to the temperature of (a) water at 0°C (b) ice at - 4°C (c) mixture of ice, water and vapour under equilibrium conditions under NTP conditions (d) mixture of ice and water Under equilibrium conditions.

Description : A standard ice point temperature corresponds to the temperature of (a) water at 0°C (b) ice at - 4°C (c) mixture of ice, water and vapour under equilibrium conditions under NTP conditions (d) mixture of ice and water Under equilibrium conditions.

Last Answer : Ans: D

The freezing point of fresh water is - (1) 0°C (2) 4°C (3) 3°C (4) 5 C

Description : The freezing point of fresh water is - (1) 0°C (2) 4°C (3) 3°C (4) 5 C

Last Answer : (1) 0°C Explanation: Ocean water freezes just like freshwater, but at lower temperatures. Fresh water freezes at 32 degrees Fahrenheit but seawater freezes at about 28.4 degrees Fahrenheit, because of the salt in it.

The freezing point of fresh water is - (1) 4°C (2) 3°C (3) 5°C (4) 0°C

Description : The freezing point of fresh water is - (1) 4°C (2) 3°C (3) 5°C (4) 0°C

Last Answer : (4) 0°C Explanation: The freezing point of water is the temperature at which water changes phase from a liquid to a solid. Under normal conditions, ordinary water freezes at 0°C, or 32°F. ... or if there are impurities present in the water which could cause freezing point depression to occur.

Lakes freeze in cold countries in winter, leaving the water underneath at – (1) 0°C (2) 0°F (3) 4°C (4) 4°F

Description : Lakes freeze in cold countries in winter, leaving the water underneath at – (1) 0°C (2) 0°F (3) 4°C (4) 4°F

Last Answer : (3) 4°C Explanation: Lake ice cover is seasonal and occurs where average daily temperature is below the freezing point. Once formed the lake ice thickens over the course of the winter as the temperature ... 0 (zero) degrees Celsius water at the surface and denser 4 degrees Celsius at the bottom.

The freezing point of fresh water is _______. (1) 4°C (2) 3°C (3) 5°C (4) 0°C

Description : The freezing point of fresh water is _______. (1) 4°C (2) 3°C (3) 5°C (4) 0°C

Last Answer : 0°C

Lakes freeze in cold countries in winter, leaving the water underneath at (1) 0°C (2) 0°F (3) 4°C (4) 4°F

Description : Lakes freeze in cold countries in winter, leaving the water underneath at (1) 0°C (2) 0°F (3) 4°C (4) 4°F

Last Answer : 4°C

The density of water at 4°C is  a. 1 gm/cm³  b. 2 gm/cm³  c. 3 gm/cm³  d. 4 gm/cm³

Description : The density of water at 4°C is  a. 1 gm/cm³  b. 2 gm/cm³  c. 3 gm/cm³  d. 4 gm/cm³

Last Answer : 1 gm/cm³

4° F will be equivalent to (a) 77° X (b) 113.3° X (c) 128.6° X (d) 154.4° X

Description : 4° F will be equivalent to (a) 77° X (b) 113.3° X (c) 128.6° X (d) 154.4° X

Last Answer : Ans:(c)

When correcting specific gravity readings of a lead-acid battery for existing temperature conditions, you should ______________. A. add 10 points for each 4° above 80°F B. subtract 10 points for each 4° above 80°F C. add 4 points for each 10° above 80°F D. add 4 points for each 10° below 80°F

Description : When correcting specific gravity readings of a lead-acid battery for existing temperature conditions, you should ______________. A. add 10 points for each 4° above 80°F B. subtract 10 points for each 4° above 80°F C. add 4 points for each 10° above 80°F D. add 4 points for each 10° below 80°F

Last Answer : Answer: C

For clear distinct vision, images of obstructions should fall on the retina with a cone of (A) 2° (B) 3° (C) 4° (D) 5°

Description : For clear distinct vision, images of obstructions should fall on the retina with a cone of (A) 2° (B) 3° (C) 4° (D) 5°

Last Answer : Answer: Option D

If the radius of a main curve is 300 m and length of the transition curve is 100 m, the angle with tangent to locate the junction point, is (A) 1° 11' (B) 2° 11' (C) 3° 11' (D) 4° 11'

Description : If the radius of a main curve is 300 m and length of the transition curve is 100 m, the angle with tangent to locate the junction point, is (A) 1° 11' (B) 2° 11' (C) 3° 11' (D) 4° 11'

Last Answer : Answer: Option C

If the ruling gradient is 1 in 150 on a particular section of a broad gauge track, the allowable ruling gradient on a 4° curve in the track will be :

Description : If the ruling gradient is 1 in 150 on a particular section of a broad gauge track, the allowable ruling gradient on a 4° curve in the track will be : (a) 0.51% (b) 0.53% (c) 0.61% (d) 0.67%

Last Answer : (a) 0.51%

The normal temperature of the human body is – (1) 37°C (2) 37°F (3) 104°F (4) 36.8°C

Description : The normal temperature of the human body is – (1) 37°C (2) 37°F (3) 104°F (4) 36.8°C

Last Answer : (1) 37°C Explanation: The normal human body temperature is often stated as 36.5–37.5 °C.

Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at 35°C (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C (C) Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°C (D) A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Description : Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at ... flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Last Answer : (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C

Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8 (A) °C (B) °F (C) °K (D) °R

Description : Melting point & boiling points of liquid oxygen are respectively - 218.8°C & - 183°C, while the same for liquid nitrogen is - 210°C & - 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8 (A) °C (B) °F (C) °K (D) °R

Last Answer : (B) °F

Normally the guaranteed best approach a cooling tower can achieve is _____. • 5°C • 12°C • 8°C • 2.8°C

Description : Normally the guaranteed best approach a cooling tower can achieve is _____. • 5°C • 12°C • 8°C • 2.8°C

Last Answer : 2.8°C

Carnot cycle efficiency is maximum when  (a) initial temperature is 0°K  (b) final temperature is 0°K  (c) difference between initial and final temperature is 0°K  (d) final temperature is 0°C  (e) initial temperature is minimum possible.

Description : Carnot cycle efficiency is maximum when  (a) initial temperature is 0°K  (b) final temperature is 0°K  (c) difference between initial and final temperature is 0°K  (d) final temperature is 0°C  (e) initial temperature is minimum possible.

Last Answer : Answer : b

Water on heating from 1 to 4°C (A) Contracts (B) Expands (C) Has same volume (D) May contract or expand

Description : Water on heating from 1 to 4°C (A) Contracts (B) Expands (C) Has same volume (D) May contract or expand

Last Answer : (A) Contracts

Process of heating milk to 72°C about 16 seconds and then cooling it to 4°C to destroy harmful bacteria is known as?

Description : Process of heating milk to 72°C about 16 seconds and then cooling it to 4°C to destroy harmful bacteria is known as?

Last Answer : Chromatography

For every 4°C raise in air inlet temperature of an air compressor, the power consumption will increases by_____ a) 2% b) 1% c) 3% d) 4%

Description : For every 4°C raise in air inlet temperature of an air compressor, the power consumption will increases by_____ a) 2% b) 1% c) 3% d) 4%

Last Answer : b) 1%

What happens when the temperature of water falls from 30°C and 0°C? (a) The volume of ice formed will be less than volume of water (b) The volume of ice formed will be more than the volume of water (c) Water will not freeze at 0°C (d) None of the above

Description : What happens when the temperature of water falls from 30°C and 0°C? (a) The volume of ice formed will be less than volume of water (b) The volume of ice formed will be more than the volume of water (c) Water will not freeze at 0°C (d) None of the above

Last Answer : Ans:(b)

Using the phase diagram for H2O, which of the following correctly describes water at 0°C and 1 atm?

Description : Using the phase diagram for H2O, which of the following correctly describes water at 0°C and 1 atm?

Last Answer : At the melting point(Explanation) if you look at the phase diagram and look at the point where the water is 0 degrees C and 1 atm, they meet right on the line. This is the line that shows the melting point ... , since the point is on the line, water at 0 degrees C and 1 atm is at the melting point.

One ton of the refrigeration is (a) the standard unit used in refrigeration problems (b) the cooling effect produced by melting 1 ton of ice (c) the refrigeration effect to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours (d) the refrigeration effect to produce 1 ton of ice at NTP conditions

Description : One ton of the refrigeration is (a) the standard unit used in refrigeration problems (b) the cooling effect produced by melting 1 ton of ice (c) the refrigeration effect to freeze 1 ton of water at ... ice at 0°C in 24 hours (d) the refrigeration effect to produce 1 ton of ice at NTP conditions

Last Answer : Ans: c

Pick up the incorrect statement (a) lithium bromide used in vapour absorption cycle is nonvolatile (b) lithium bromide plant can't operate below 0°C (c) a separator is used in lithium bromide plant to remove the unwanted water vapour by condensing (d) concentration of solution coming out of lithium bromide generator is more in comparison to that entering the generator

Description : Pick up the incorrect statement (a) lithium bromide used in vapour absorption cycle is nonvolatile (b) lithium bromide plant can't operate below 0°C (c) a separator is used in lithium ... of solution coming out of lithium bromide generator is more in comparison to that entering the generator

Last Answer : Ans: c

When heated from 0°C to 100°C volume of a given mass of water will – (1) Increase gradually (2) Decrease gradually (3) Increase and then will decrease (4) Decrease and then will Increase

Description : When heated from 0°C to 100°C volume of a given mass of water will – (1) Increase gradually (2) Decrease gradually (3) Increase and then will decrease (4) Decrease and then will Increase

Last Answer : (4) Decrease and then will Increase Explanation: When heated from 00 to 100 C volume of a given mass of water will first decrease and then increase. If the word "ice" or "solid" is not mentioned, the word "water" means liquid water.

Water will not be vaporized if – (1) the temperature is 0°C (2) the humidity is 0% (3) the humidity is 100% (4) the temperature is 100°C

Description : Water will not be vaporized if – (1) the temperature is 0°C (2) the humidity is 0% (3) the humidity is 100% (4) the temperature is 100°C

Last Answer : (3) the humidity is 100% Explanation: If the relative humidity is 100 percent, water will not evaporate as the air is already saturated with moisture. When relative humidity approaches 100 percent, condensation can occur. The lower the relative humidity, the easier it is for moisture to evaporate.

When water is heated from 0°C to 10°C. Its volume (1) increases (2) decreases (3) does not change (4) first decreases and then increases

Description : When water is heated from 0°C to 10°C. Its volume (1) increases (2) decreases (3) does not change (4) first decreases and then increases

Last Answer : (4) first decreases and then increases

What happens, When water is heated from 0°C to 10°C the volume of water?

Description : What happens, When water is heated from 0°C to 10°C the volume of water?

Last Answer : First decreases then increases

One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to (A) Heat the water from 0°C to 100°C (B) Evaporate the water (C) To superheat the steam (D) Data insufficient, can't be predicted

Description : One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to (A) Heat the water from 0°C to 100°C (B) Evaporate the water (C) To superheat the steam (D) Data insufficient, can't be predicted

Last Answer : (B) Evaporate the water

The entropy of water at 0°C is assumed to be  A. 1  B. 0  C. -1  D. 10

Description : The entropy of water at 0°C is assumed to be  A. 1  B. 0  C. -1  D. 10

Last Answer : Answer: B

If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be  (a) 80°C  (b) 0°C  (c) 40°C  (d) 20°C  (e) 60°C.

Description : If a certain amount of dry ice is mixed with same amount of water at 80°C, the final temperature of mixture will be  (a) 80°C  (b) 0°C  (c) 40°C  (d) 20°C  (e) 60°C.

Last Answer : Answer : b