Answer:
The volume of ammonia produced by 4.2 L of hydrogen and excess nitrogen is 2.8 L.
Explanation:
Given data:
Volume of H₂ = 4.2 L
Volume of NH₃ produced = ?
Solution:
First of all we will write the balance chemical equation:
N₂ + 3H₂ → 2NH₃
Hydrogen is limiting reactant and volume ratio is,
H₂ : NH₃
3 : 2
4.2 : 2/3 × 4.2 = 2.8 L
The volume of ammonia produced by 4.2 L of hydrogen and excess nitrogen is 2.8 L.
Answer:
The temperature in Celsius is 383, 7°C
Explanation:
We use the formula PV=nRT. We convert the pressure in KPa into atm:
101,325kPa---1 atm
114kPa--------x=(114kPa x 1 atm)/101,325kPa=1, 125 atm
PV=nRT ---> T= PV/nR
T=1, 125 atm x 35, 9 L/ 0,750 mol x 0,082 l atm/K mol
T= 656, 7 K
0°C= 273K---> 656,7 -273K= <em>383,7°C</em>
Answer:
HCl
Explanation:
Phosgene (COCl₂) on reaction with moisture in lungs converts into Carbon dioxide and hydrochloric acid.
COCl₂ + 2 H₂O → CO₂ + 2 HCl
The HCl produced in lungs causes problems. It reacts with alveoli proteins resulting in suffocation, coughing, eyes and throat irritation and difficulty in breathing.
There is no definite definition of entropy. In books, entropy is usually introduced through differential equations relating enthalpy and Gibb's free energy. However, that is an advanced explanation. For simplicity, entropy is the state of disorder. So, when the system shows a decrease in entropy, the system's molecules gets in order. For example, freezing water puts it in order because liquid water molecules are compacted into solid crystals. In relation, for a decrease in entropy, the reaction is more non-spontaneous.