The product of a number and 4 is 32
The equation for the reaction describe in the question is NH4Cl (s) --> NH3 (g) + HCl (g)
the equation of heat reaction :
ΔH25° = (ΔH25° NH3 + ΔH25° HCl) - (ΔH25° NH4Cl)
use the table from basic chemical engineering calculations of himmelblau or felder to find ΔH25°.ΔH25° of products minus ΔH25° of reactants.
hope this help
False because mass refers to number of particles, while volume describes the area occupied.
Answer:
I think the answer would be A.
Answer:
P₂ = 0.6406 atm
Explanation:
Given data:
Initial volume = 24.0 L
Initial pressure = 1.00 atm
Initial temperature = 203.0 K
Final temperature = 298.0 K
Final volume = 55.0 L
Final pressure = ?
Solution:
According to general gas equation:
P₁V₁/T₁ = P₂V₂/T₂
Formula:
P₁V₁/T₁ = P₂V₂/T₂
P₁ = Initial pressure
V₁ = Initial volume
T₁ = Initial temperature
P₂ = Final pressure
V₂ = Final volume
T₂ = Final temperature
Solution:
P₂ = P₁V₁ T₂/ T₁ V₂
P₂ = 1 atm × 24.0 L × 298.0 K / 203.0 K × 55.0 L
P₂ = 7152 atm .L. K / 11165 K.L
P₂ = 0.6406 atm
When we multiply or divide the values the number of significant figures must be equal to the less number of significant figures in given value.
Thus we will include four significant figures in answer because 7152 have four significant figure.