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Question
Calculate the speed of sound in oxygen from the following data. The mass of 22.4 litre of oxygen at STP (T = 273 K and P = 1.0× 105 N m−2) is 32g, the molar heat capacity of oxygen at constant volume is CV = 2.5 R and that at constant pressure is Cp = 3.5 R.
Calculate the speed of sound in oxygen from the following data. The mass of 22.4 litre of oxygen at STP (T = 273 K and P = 1.0× 105 N m−2) is 32g, the molar heat capacity of oxygen at constant volume is CV = 2.5 R and that at constant pressure is Cp = 3.5 R.
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Solution
The correct option is B 315ms
The mass of 22.4 L of any ideal gas at STP = molecular mass.
Considering oxygen to be ideal
MOxygen = 32 g
CV = 2.5 R, CP = 3.5 R (given)
V1 speed of sound in
O2=√γRTM
√(CPCV).R.27332×10−3
=315ms
The mass of 22.4 L of any ideal gas at STP = molecular mass.
Considering oxygen to be ideal
MOxygen = 32 g
CV = 2.5 R, CP = 3.5 R (given)
V1 speed of sound in
O2=√γRTM
√(CPCV).R.27332×10−3
=315ms
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