In the equation 2 a P + V       (V - b) = constant P is the pressure, V is the volume and a and b are constants. The unit of a is 1) 5 dyne × cm 2) dyne × cm4 3) -3 dyne cm 4) -2 dyne cm

Question

1 litre of hydrogen at 127 degree Celsius and 1p raise to power 6 dyne per cm square pressure expand isothermally when pressure is reduced to 5 into 10 raise to power 5 dyne per CM square find volume of gas after expansion

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Answer 1

Hey Candidate,

The equation for the Ideal Gas behaviour is given by PV=NRT, where P represents pressure, V represent volume, N represents no. of moles, T represent temperature, and R stands for universal gas constant.

The equation for Real gas is a bit different than real gas and is given by- P+ (an*n/v*v). (V-nb)= RT. Hence, the term of an.n/v.v has also the same dimension as Pressure (dyne). The dimension of a = pressure. Volume*Volume, which denotes (Dyne cm.cm.cm.cm). So, the option "2" is correct.

Hope that the answer helps you!!

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In the equation 2 a P + V       (V - b) = constant P is the pressure, V is the volume and a and b are constants. The unit of a is 1) 5 dyne × cm 2) dyne × cm4 3) -3 dyne cm 4) -2 dyne cm

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1 litre of hydrogen at 127 degree Celsius and 1p raise to power 6 dyne per cm square pressure expand isothermally when pressure is reduced to 5 into 10 raise to power 5 dyne per CM square find volume of gas after expansion

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Question : The volume of a cone whose radius of a base and height are $r$ cm and $h$ cm respectively, is 400 cm³. What will be the volume of a cone whose radius of base and height are $2r$ cm and $h$ cm respectively?

Question : The radius and height of a cylinder are in the ratio 4: 7 and its volume is 2816 cm³. Find its radius. (Take $\pi=\frac{22}{7}$ )