Answer:
T= 257.36 k
Explanation:
using the ideal gas law
pv=nRt
first, convert pressure from mmhg to kpa
312 x (101.3\760)= 41.58 kpa
R is constant= 8.31
to get n(number of moles)
n=m\M (m is mass, M is molar mass)
molar mass of argon is 39.948
n= 2.33\39.948
n=0.0583
substitute;
41.58 x 3 = 0.0583 x 8.31 x T
T= (41.58 x 3)\ (0.0583 x 8.31)
T= 257.36 k
Answer: -19 kJ
Explanation:
The change in enthalpy is mathematically expressed as the difference between the the total potential energy of products and the potential energy of the reactants :
Where:
Then:
The negative sign in this result means we have a negative enthalpy, hence an exothermic reaction (where heat is released).
Answer:
50° celsius
Explanation:
115 f is equal to 46.111 celsius, which is less than 50 celsius