If one mole of ammonia and one mole of hydrog | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The chemical reaction is: $NH_3(g) + HCl(g) \rightarrow NH_4Cl(g)$The relationship between enthalpy change $(\Delta H)$ and internal energy change

Vedclass · Accepted Answer

$\Delta H < \Delta U$

Vedclass · Answer

(C) The chemical reaction is: $NH_3(g) + HCl(g) ightarrow NH_4Cl(g)$The relationship between enthalpy change $(\Delta H)$ and internal energy change $(\Delta U)$ is given by: $\Delta H = \Delta U + \Delta n_g RT$Where $\Delta n_g$ is the change in the number of moles of gaseous species.$\Delta n_g = (	ext{moles of gaseous products}) - (	ext{moles of gaseous reactants})$$\Delta n_g = 1 - (1 + 1) = 1 - 2 = -1$Substituting this into the equation: $\Delta H = \Delta U - RT$Since $RT$ is positive,it follows that $\Delta H < \Delta U$.

If one mole of ammonia and one mole of hydrogen chloride are mixed in a closed container to form ammonium chloride gas,then

Similar Questions

One mole of a gas absorbs $200 \ J$ of heat at constant volume. Its temperature increases from $298 \ K$ to $308 \ K$. The change in its internal energy is ....... Joules.

For the gas phase reaction $A_{2(g)} + B_{2(g)} \rightarrow 2AB_{(g)}$ taking place at constant pressure and temperature where all gases are behaving ideally,which of the following must be correct?

An isolated chamber is divided into two halves by a partition,with an ideal gas in one half. By making a hole in the partition,the gas is allowed to expand to the full chamber. Among the following,the parameter which changes in the process is

During the free expansion of an ideal gas in an isolated chamber,

During the free expansion of an ideal gas,its.......

Vedclass Test Series

Exam Paper Generator

Online Exam Module