Q25Short answer
Value of universal gas constant (R) is same for all gases. What is its physical significance?
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Unit of R depends upon those units in which p, V and T are measured, R= . If pressure is measured in Pascal, per mole volume is measured in m3 and temperature is measured in Kelven then. Units of ‘R’ are –1 –1 –1 –1 Pam3K mol or J mol K . Jule is the unit of work done so ‘R’ is work done per mole per kelvin. 65 States of Matter