1in case 1, mouth should be kept wide open
whil in case 2 very less space should be left for air to cum out..
Why can you warm your hands by blowing gently, and cool your hands by blowing hard?
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8 Answers
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49though it is 9-10 probblem still i think the explanation is adiabatic expansion in second case.
62to be true it is a biology questoin ;)
If i remember correctly what i read ;) :D
49biology?? [125] kaise??
mujhe to ab tak lagta hai thats a q of adiabatic expansion....[1]
1wen u pass a gas.suddenly thru a narow opening of ur mouth .. the temperture... falls drastically..as the volume sudenly increases...with other factors remaining constant...thus blowing cool air......but this doesnot occur..wen blown gently..
49yes that is what i mean by adiabatic expansion???isnt it???
but nishant bhaiya posted it in 9 - 10 forum....and he also insists its a biology quest...so wat possibly can the ans be'???
49and remember it is tru when u pass gas through a narrow opening....of ur..................................mouth only nothing else.....mind it...[3][3][3]
49neways the name of the opic reminds me of hamlet...to warm or not to warm....
like to be or not to be...[3][3]