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Question

The equation of a gas is given by : PV=AT+BT2, where P= pressure, V= volume, T= temperature. The dimensions of constant B are

A
[ML2T4]
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B
[ML2T2θ2]
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C
[ML]
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D
[ML2T2]
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Solution

The correct option is B [ML2T2θ2]
We know the dimension of P and V, using that dimension of PV
[PV]=[ML2T2],
The dimension of PV will be equal to the remaining two, which are being added. Equating the dimension
[AT]=[ML2T2]
[BT2]=[ML2T2]
[B]=[ML2T2θ2]

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