Assuming that water vapour is an ideal gas, the internal energy change (Δ U) when 1 mol of water is vapourised at 1 bar pressure and 100° C (Given: molar enthalpy of vapourisation of water at 1 bar and 373 K = 41 kJ mo l⁻¹ and R = 8.3 J mo l⁻¹ K⁻¹)

Chemical Thermodynamics: JEE Main 2007 Chemistry question

JEE Main 2007 · Annual, Paper 1 · Q2341

JEE Main 2007Annual, Paper 1ChemistryMediumChemical Thermodynamics84× since 2002

Assuming that water vapour is an ideal gas, the internal energy change

\left( {\Delta U} \right)

when

1

mol of water is vapourised at

1

bar pressure and

{100^ \circ }C

(Given : molar enthalpy of vapourisation of water at

1

bar and

373

K

= 41\,kJ\,mo{l^{ - 1}}\,

and

R = 8.3\,J\,mo{l^{ - 1}}\,{K^{ - 1}}

)

JEE Main 2007 Chemical Thermodynamics Question with Solution (Annual Paper 1, Q2341) | JEE Arc