Questions
Internal energy of n1 mol of hydrogen at temperature T is equal to the internal energy of n2 mol of helium at temperature 2T. The ratio n1/n2 is
detailed solution
Correct option is C
Internal energy of n moles of an ideal gas at temperature T is given by U=f2nRT (f=degrees of freedom) U1=U2 f1n1T1=f2n2T2∴n1n2=f2T2f1T1=3×25×1=65Here f2 = degrees of freedom of He = 3and, f1 = degrees of freedom of H2 = 5Talk to our academic expert!
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Heat , is supplied to moles of an ideal diatomic gas at temperature 7, which remains constant. How many moles of the gas are dissolved into atoms?
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