Question
Why does a desert cooler cool better on a hot, dry day?

Answer

The cooling in a desert room cooler is caused by the evaporation of water. The higher temperature on a hot day increases the rate of evaporation of water, and the dryness of air also increases the rate of evaporation of water. And due to this increased rate of evaporation of water, a desert room cooler works better on a hot and dry day.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Explain how does the body react after the entry of microbe in the body.
A constant force applied on an object of mass $2kg$ for $10s$, increases its velocity from $5ms$ to $10ms^{-7}$. Find the magnitude of applied force. If the same force is applied for $15s$, what will be the final velocity of the object?
  1. Draw a neat diagram of Hydra.
  2. Label mesoglea and gastrovascular cavity.
  3. Name the group of animals it belongs to.
  4. Name one species of this group that lives in colonies.
What is the momentum in kgm/s of a $10\ kg$ car travelling at $(a) 5\ m/s$ $(b) 20\ cm/s$, and $(c) 36\ km/h?$
A piece of stone is thrown vertically upwards. It reaches the maximum height in $3$ seconds. If the acceleration of the stone be $9.8m/s^2$ directed towards the ground, calculate the initial velocity of the stone with which it is thrown upwards.
The position of a body at different times is recorded in the table given below:-
Time (s)012345678
Displacement (m)0612182430364248

i. Draw the displacement time graph for the above data.
ii. What is the slope of graph?
iii. What is the velocity of the motion?
Describe a method for separating a mixture of iron filings and sulphur powder other than that by using a magnet.
Write short note on nucleus.
Why are you more likely to suffer from an infection when you travel through public transport?
In the gold foil experiment of Geiger and Marsden, that paved the way for Rutherford's model of an atom, $\sim 1.00 \%$ of the a-particles were found to deflect at angles $>50^{\circ}$. If one mole of a-particles were bombarded on the gold deflect at angles foil, compute the number of a-particles that would less than $50^{\circ}$.