Determine the amount of heat (in kj) given off when 1.26 × 104 g of ammonia are produced according to the equation n2(g) + 3h2(g) ⟶ 2nh3(g) δh°rxn = −92.6 kj/mol assume that the reaction takes place under standardstate conditions at 25°c.

The enthalpy of the reaction for given amount of ammonia will be -3431.3 kJ.

Explanation:

To calculate the number of moles, we use the equation:

For ammonia:

Given mass of ammonia =

Molar mass of ammonia = 17 g/mol

Putting values in above equation, we get:

We are given:

Moles of ammonia = 74.11 moles

For the given chemical reaction:

By Stoichiometry of the reaction:

If 2 moles of ammonia produces -92.6 kJ of energy.

Then, 74.11 moles of ammonia will produce = of energy.

Thus, the enthalpy of the reaction for given amount of ammonia will be -3431.3 kJ.

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

answer: gold foil experiment - he shot alpha particles at a gold foil

explanation: