Science General · Environmental Studies

Temperature Concepts

1,035 Questions

Temperature concepts involve understanding thermal conditions across various scientific and daily life contexts. This includes ideal storage temperatures, celestial body heat, and climate ranges. These facts are commonly tested in general science and environmental awareness papers.

Celestial body temperaturesStorage and cooking temperaturesAtmospheric and climate temperatureLaboratory temperature ranges

Temperature Concepts Questions

Multiple choice evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

For pasteurisation milk is__________.

  1. Warmed at $80^o$C for $5$ minutes and cooled slowly
  2. Boiled at $100^o$C and cooled slowly

  3. Treated with citric acid
  4. Warmed at $60^o$C for $20$ minutes and cooled fast
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
(D) Warmed at $ 60^{\circ}C $ for 20 minutes & cooled fast.
$ \rightarrow $ It is a process of heating a liquid to below the Boiling point to destroy microorganisms.
Milk is heated 155 to $ 175^{\circ}$ F i.e.' in Celsius scale about 68.3 to $ 81^{\circ}C $ for an Instant followed by cooling. A standardises milk and cleans extraneous matter from it.
Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

When first formed the early earth was very hot. Its surface temperature was :

  1. $ 1000^o-1200^o C $
  2. $ 3500^o-4000^o C $
  3. $ 5000^o-6000^o C $
  4. $ 8000^o-10000^o C $
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

During the Hadean Eon, the early Earth was extremely hot due to frequent collisions, radioactive decay, and gravitational contraction. Estimates for the surface temperature during this formation period are typically in the range of 5000 to 6000 degrees Celsius.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

In mesosphere, the temperature :

  1. Rises from $-2^o $ to $ 15^o C $
  2. Rises from $-2^o $ to $ 92^o C $
  3. Decreases from $-2^o $ to $ -15^o C $
  4. Decreases from $-2^o $ to $ -92^o C $
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In the mesosphere, the temperature decreases with altitude because there are very few molecules to absorb solar radiation. It drops from approximately -2 degrees Celsius at the stratopause to about -92 degrees Celsius at the mesopause.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

In thermosphere the temperature

  1. Rises with height to $200^0$ C
  2. Rises with height to $1500^0$ C

  3. First decreases then rises
  4. Decreases to - $150^0$ C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the thermosphere, temperatures increase significantly with altitude due to the absorption of high-energy solar radiation, reaching temperatures up to 1500 degrees Celsius or more.

Multiple choice evs - i the earth and its living world introduction to the spheres of the earth origin of universe introduction to natural resources

In mesosphere, the temperature

  1. Rises from - $2^0$ to $15^0$ C
  2. Rises from - $2^0$ to $92^0$ C
  3. Decreases from - $2^0$ to - $15^0$ C
  4. Decreases from - $2^0$ to - $92^0$ C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Temperatures in the mesosphere decrease with altitude. Because there are few gas molecules in the mesosphere to absorb the Sun’s radiation, the heat source is the stratosphere below. The mesosphere is extremely cold, especially at its top, about -90 degree Celsius.  So the correct answer is ' it decreases from -2 to -92 degrees. '

Multiple choice chemistry matter around us measurement of properties effect of temperature and pressure on states of matter general introduction: importance and scope of chemistry

Which one of the following temperatures is approximately equal to "room temperature ?"

  1. $0\ K$
  2. $293\ K$
  3. $100$ Degree Celsius
  4. $0$ Degree Celsius
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Room temperature is typically defined as approximately 20 to 25 degrees Celsius, which corresponds to roughly 293 to 298 Kelvin.

Multiple choice chemistry matter around us measurement of properties effect of temperature and pressure on states of matter general introduction: importance and scope of chemistry

Our body temperature is maintained at :

  1. ${20 ^ 0C }$
  2. ${41 ^0 C}$
  3. ${37 ^0 C}$
  4. ${11^0 C}$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Our body temperature is maintained at $37^\circ C$ or $98^\circ F$ on an average. Our body has thermo-regulation mechanism that keeps the body at optimum operating temperature. Water plays an important role in this mechanism.

Multiple choice chemistry matter around us measurement of properties effect of temperature and pressure on states of matter general introduction: importance and scope of chemistry

To convert Kelvin scale to Celsius scale:

  1. add $273$ to Kelvin scale
  2. subtract $273$ from Kelvin scale
  3. multiply $273$ with Kelvin scale
  4. divide $273$ by Kelvin scale
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
$^0C=K-273$
To convert Kelvin to Celsius, subtract $273$ from kelvin scale.

Hence, option $B$ is the answer.
Multiple choice chemistry matter around us measurement of properties effect of temperature and pressure on states of matter general introduction: importance and scope of chemistry

Which temperature is hottest?

  1. $17^oC$
  2. $58^o F$
  3. $290 K$
  4. $16^o C$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Relation between celsius kelvin and fahrenheit scale.
${ T } _{ C }=\frac { 5 }{ 9 } ({ T } _{ F }-32){ =T } _{ K }-273.15$

$17^0C=17^0C$
$58^0F=\frac {58-32} {1.8}=14.44^0C$
$290K={290-273.15}^0C=16.85^0C$

$16^0C=16^0C$

$17^0C$ is hotter.
Option A is correct.

Multiple choice chemistry matter around us measurement of properties effect of temperature and pressure on states of matter general introduction: importance and scope of chemistry

298 K is approximately what temperature in degrees Celsius?

  1. $25^oC$
  2. $24^oC$
  3. $29^oC$
  4. $27^oC$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Zero on the Celsius scale $(0^0C)$ is now defined as the equivalent to $273.15K$, with a temperature difference of $1^0C$ equivalent to a difference of $1K$, meaning the unit size in each scale is the same.

$T _k=T _c+273.15$
$T _k=$Temperature in kelvin.

$T _c=$Temperature in celsius.
$T _c=298-273=25^0C$.Option A is correct.