17.0 g of NH 3 completely vapourises at -33.42° C and 1 bar pressure and the enthalpy change in the process is 23.4 kJ mol -1. The enthalpy change for the vapourisation of 85 g of NH 3 under the same conditions is kJ.

Question

17.0 g of NH 3 completely vapourises at -33.42° C and 1 bar pressure and the enthalpy change in the process is 23.4 kJ mol -1. The enthalpy change for the vapourisation of 85 g of NH 3 under the same conditions is kJ. (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

Given data is for 1 moles and asked for 5 moles so value is 23.4 × 5=117 kJ

Q. $17.0 g$ of $N H_{3}$ completely vapourises at $- 33.4 2^{\circ} C$ and $1$ bar pressure and the enthalpy change in the process is $23.4 k J m o l^{- 1}$ . The enthalpy change for the vapourisation of $85 g$ of $N H_{3}$ under the same conditions is ____ $k J$ .

Given data is for 1 moles and asked for 5 moles so value is $23.4 \times 5 = 117 k J$

Q. 17.0g of NH3​ completely vapourises at −33.42∘C and 1 bar pressure and the enthalpy change in the process is 23.4kJmol−1. The enthalpy change for the vapourisation of 85g of NH3​ under the same conditions is ____kJ.

Given data is for 1 moles and asked for 5 moles so value is 23.4×5=117kJ

Q. $17.0 g$ of $N H_{3}$ completely vapourises at $- 33.4 2^{\circ} C$ and $1$ bar pressure and the enthalpy change in the process is $23.4 k J m o l^{- 1}$ . The enthalpy change for the vapourisation of $85 g$ of $N H_{3}$ under the same conditions is ____ $k J$ .

Given data is for 1 moles and asked for 5 moles so value is $23.4 \times 5 = 117 k J$