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yes arvind ,what's problem
1.Two rodsof lengths L1 and L2 are made of materials having coeff of linear expansion alpha 1 and alpha 2 .If (L1-L2) is independent of temperature which of the foll is correct?
a)L1L2=alpha1/alpha2 b)L1L2=alpha1alpha2 c)L1alpha1=L2alpha2 d)none of these
yes arvind ,do you know about the relation between length and temperature?
pls giv the aanswer its been a long time
2.A bottle of water at 0 degree on surface of moon what happens?
3.If 22 gm of CO2 at 27 degree is mixed with 16gm of O2 at 37 degree the temp of mixture is?
then right two equation for them and subtract these two equation and think about which term should be zero so that it be independent of temperature.
find the number of mole for both carbon dioxide and oxygen gas. find value of Q for both and equate them and find the mixture temperature, Let the temperature be T: then
n(CO2)*Cv(CO2)*(T-27)=n(O2)*Cv(O2)*(37-T)..FIND T, here Cv(CO2)=9/7 AND Cv(O2)=7/5 n(CO2)=0.5 AND n(O2)=0.5
what abt 2nd qn?
where you got this question 2?
in one of my worksheets
ok.. i am thinking about it..do you know ,what is the average temperature on the surface of the moon
arvind, any confusion..
second question is very interesting question.
did you get answer of first question.
answer Q1 is (c)
Q1. L1(1+alpha1*T)=L2(1+alpha2*T) or, L1-L2=(L2*alpha2-L1*alpha1)*T here L!-L2 is independent of T if (L2*alpha2-L1*alpha1)=0 solve it and get answer (c)
any query arvind..
k in 2nd qn i have options a)water freezes b)water boils c)water decomposes into h2 and o2 d)none of these
is it bcoz temp less than 0 degree
yes ,the average Temperature of earth is 14deg C but on the moon surface it is 220 k=-53 degC.
what's the option of 3rd question in your worksheet
two rods of same length and material transfer a given amount of heat IN 12 S,WHEN THEY ARE JOINED END TO END bUT when they are joined lengthwise ,they will transfer same heat in same conditions in....
ok.. i am going....
tell me the time
i will back 2 o'clock..