an open flask contains air at 27degree celsius .calculate the temperature at which it should be heated so that 1/3rd of air measured at 27 degree celsius escapes out
Answers
Answered by
99
27°C= 27+273= 300 Kelvin
Let at temperature1 (T1), volume = 1 litre
When ⅓ air escapes out, air left = ⅔ litre
use V1T1= V2T2
1 x 300 = ⅔ x T2
T2= 450 Kelvin
ie 450-273= 177°C
Let at temperature1 (T1), volume = 1 litre
When ⅓ air escapes out, air left = ⅔ litre
use V1T1= V2T2
1 x 300 = ⅔ x T2
T2= 450 Kelvin
ie 450-273= 177°C
Answered by
3
Answer:
177 degree C
Explanation:
Let T1=27 degree C= 27+273 = 300K
and T2=?
Let initial number of moles of air at 27 degree C=n
At temperature T2 K, the no. of moles left =n−n/3=2n/3
At constant pressure and volume, n1T1=n2T2
⇒n×300=(2n/3) T2
⇒T=450 K = 450-273 = 177 degree C.
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